These Terms & Conditions constitute a legally binding agreement between you and bk4 governing your use of the bk4 platform, including all casino games, sports betting services, account features, promotions, and payment facilities. Please read them carefully before registering or placing any wager.
By accessing or using the bk4 platform in any capacity, you confirm that you have read, understood, and accepted these Terms & Conditions in full. Continued use constitutes ongoing acceptance.
Access to bk4 is strictly limited to individuals aged 18 years and above. Age verification is conducted during KYC. Players found to be underage will have their accounts closed and all funds returned minus processing costs.
bk4 operates under strict fair play principles. All casino games use certified random number generators. Any attempt to exploit software bugs, collude, or manipulate outcomes will result in immediate account suspension.
Players are responsible for ensuring that all deposits are made from payment accounts they own. bk4 supports bKash, Nagad, Rocket, Upay, and select Bangladeshi bank transfers. Third-party payment accounts are not permitted.
All bonuses and promotional offers are subject to specific wagering requirements detailed at the point of offer. Bonus abuse, including the creation of multiple accounts to claim duplicate bonuses, is strictly prohibited.
bk4 reserves the right to amend these Terms & Conditions at any time. Material changes will be communicated via email or on-platform notification. Continued use after notification constitutes acceptance of revised terms.
Important Notice: These Terms & Conditions apply to all users of the bk4 platform, including visitors, registered members, and players. By accessing bk4 you agree to be legally bound by these terms. If you do not agree, you must cease using the platform immediately.
In these Terms & Conditions, the following definitions apply unless the context clearly requires otherwise:
The bk4 platform is strictly limited to individuals who are 18 years of age or older. It is a criminal offence in many jurisdictions to allow a minor to participate in gambling activities. bk4 takes its obligations in this regard extremely seriously. Any player who provides false information about their age during registration will have their account permanently closed, any winnings forfeited, and deposits returned at bk4's sole discretion after an investigation has concluded.
The bk4 platform is designed and operated for players located in Bangladesh. Players accessing the platform from jurisdictions where online gambling is explicitly prohibited by local law do so entirely at their own risk and legal responsibility. bk4 does not represent or warrant that accessing its Services is legal in any jurisdiction outside its primary operating territory.
Each individual player is permitted to hold one (1) registered account on bk4. The creation of multiple accounts by the same individual — whether under the same name, different names, shared devices, or shared payment methods — is strictly prohibited. Players found to have registered duplicate accounts will have all associated accounts closed and any bonus funds permanently forfeited. Withdrawals of winnings generated through duplicate accounts may also be withheld pending investigation.
Players must provide accurate, complete, and truthful information at the time of registration and must update that information promptly if it changes. This includes, but is not limited to, full legal name, date of birth, residential address, email address, and the phone number associated with their mobile wallet (bKash, Nagad, Rocket, or Upay) where applicable. bk4 reserves the right to request documentary evidence confirming registration details at any time.
Note for Bangladesh Players: Your registered bKash or Nagad number must match the name on your account. Mismatches between payment account ownership and bk4 account registration details will delay or block withdrawal processing until full KYC verification has been completed.
All bk4 accounts are subject to Know Your Customer (KYC) verification before withdrawal functionality is activated. bk4 may also request KYC documentation at any point during a player's use of the platform, including before processing large deposits or in response to unusual account activity flagged by our security systems.
Standard KYC verification on bk4 requires the following documents, submitted in clear digital format (photograph or scanned copy):
Standard KYC review is completed within 24 to 48 business hours of submission of complete and legible documentation. bk4 will notify players via their registered email address once verification is approved or if additional documentation is required. During the KYC review period, withdrawal requests will be held in a pending state and processed immediately upon verification approval.
bk4 reserves the right to refuse account activation, suspend withdrawal access, or close an account if a player fails to provide satisfactory KYC documentation within a reasonable period of the request being made. This measure exists to protect the player community and the integrity of the platform.
You are solely responsible for maintaining the confidentiality of your bk4 account login credentials, including your username and password. bk4 will never ask you to share your password via email, live chat, or any other communication channel. If you receive a request purporting to be from bk4 asking for your password, treat it as fraudulent and report it to our support team immediately.
bk4 strongly recommends that all players activate SMS-based two-factor authentication (2FA) on their account. 2FA provides a second layer of protection by requiring a one-time passcode sent to your registered phone number each time a login is attempted from an unrecognised device or location.
If you suspect that your bk4 account has been accessed without your authorisation, you must contact our support team immediately via live chat or email at [email protected]. bk4 will temporarily freeze the account pending investigation. We cannot be held liable for losses incurred as a result of unauthorised access where the player failed to adequately protect their login credentials or delayed reporting the incident.
Sharing account access with any third party, including family members, friends, or associates, is strictly prohibited. All activity on a bk4 account is the sole responsibility of the registered account holder, regardless of who physically placed the bets or initiated the transactions.
bk4 currently accepts deposits and processes withdrawals via the following payment channels available to Bangladesh players: bKash, Nagad, Rocket, Upay, Dutch-Bangla Bank, BRAC Bank, and City Bank. The list of accepted payment methods is subject to change and players should consult the cashier section of their account for the current list at the time of any transaction.
Minimum deposit and withdrawal amounts are displayed in the cashier section of your account and are denominated in Bangladeshi Taka (৳). bk4 reserves the right to adjust transaction limits at its discretion, with any changes communicated via platform notification or email prior to taking effect.
Deposits made via bKash, Nagad, Rocket, and Upay are typically credited to the player's bk4 balance within 15 minutes of confirmation of the mobile wallet transaction. Bank transfer deposits may take longer depending on the processing times of the respective Bangladeshi financial institution. bk4 is not responsible for delays caused by the player's bank or mobile wallet provider.
Withdrawal requests are processed by bk4 within the timeframes published in the cashier section, subject to: (a) the account having completed KYC verification; (b) no pending security investigations on the account; (c) compliance with the applicable bonus wagering requirements where bonus funds have been used. Withdrawals to bKash and Nagad are typically processed within 15 to 60 minutes of approval during business hours (BST, UTC+6).
As a fraud prevention measure, bk4 requires that withdrawals be processed to the same payment method used for the corresponding deposit where technically possible. Players who deposit via bKash should expect withdrawals to be returned to the same bKash number registered on the account.
All account balances, deposits, withdrawals, bets, winnings, and bonus amounts on bk4 are denominated and processed in Bangladeshi Taka (৳ / BDT). bk4 does not apply currency conversion charges on the platform side. Any foreign exchange or conversion fees applied by a player's bank or payment provider are outside bk4's control and are the player's responsibility.
Withdrawal Reminder: Withdrawals will only be processed to accounts that have completed KYC verification. Players are encouraged to complete KYC shortly after registration to avoid delays when a withdrawal is requested.
All bets placed on the bk4 platform are subject to the specific game rules or sports betting rules applicable to that market or title. Players are responsible for familiarising themselves with the rules of each game or betting market before placing a wager. Bets that have been confirmed and accepted by the bk4 system cannot be cancelled or amended by the player.
Each game and betting market on bk4 carries its own minimum and maximum stake limits, displayed within the game interface or betting market at the time of play. bk4 reserves the right to impose account-level stake restrictions at its discretion, including in response to patterns of play that suggest advantage gambling or exploitation of promotional terms.
In the event of a game malfunction, system error, or communication failure that results in an incomplete or incorrectly settled bet, bk4 reserves the right to void the affected round or bet and return the staked amount to the player's account. "Malfunction voids all plays and pays" is the governing principle. No claim may be made against bk4 for winnings resulting from a technical error that was visible or detectable to a reasonable player.
Sports betting markets, including those for cricket (BPL, IPL, T20 World Cup, Bangladesh Tigers fixtures), football, kabaddi, and other sports available on bk4, are governed by additional sport-specific rules published in the sports betting section of the platform. Key principles include:
Live dealer games provided through bk4's third-party content partners (including Evolution Gaming and Ezugi) are subject to those providers' published game rules in addition to bk4's general terms. In the event of a conflict between a provider's rules and these Terms & Conditions, these Terms & Conditions shall prevail to the extent permitted.
All bonuses, free spins, promotional credits, and other incentive offers made available through bk4 are subject to the specific terms published at the point of the offer. Those specific terms include, but are not limited to, the wagering requirement multiplier, the eligible games list, the minimum qualifying deposit, the expiry period, and any maximum withdrawal cap applying to winnings derived from bonus funds.
Bonus funds credited to a player's account must be wagered a specified number of times (the "wagering requirement") before any winnings derived from those funds become eligible for withdrawal. The applicable wagering requirement will be clearly stated in the promotion's specific terms. Until the wagering requirement is met, the bonus balance and any associated winnings are non-withdrawable.
bk4 employs automated systems to detect patterns of bonus abuse. Behaviour that constitutes bonus abuse includes, but is not limited to: the creation of multiple accounts to claim a welcome bonus or first-deposit offer more than once; the use of low-risk, mathematically-targeted betting patterns designed to complete wagering requirements while minimising real risk; and the use of third parties' payment accounts to claim bonuses linked to specific payment methods. Players found to have engaged in bonus abuse will forfeit all bonus funds and associated winnings.
bk4 reserves the right to modify, suspend, or withdraw any promotional offer at any time and without prior notice, except where doing so would prejudice the rights of players who have already accepted and started fulfilling the conditions of that offer.
bk4 periodically offers promotions tied to the Bangladeshi sporting and cultural calendar, including BPL cricket season promotions, Eid and Pohela Boishakh bonus offers, T20 World Cup tournaments, and IPL season campaigns. These promotions are available to eligible registered Bangladesh players and are subject to the specific terms stated at the time of each promotion.
The following conduct is expressly prohibited on the bk4 platform. Engaging in any of the behaviours listed below constitutes a material breach of these Terms & Conditions and will result in immediate account suspension, potential permanent closure, forfeiture of funds, and where applicable, referral to the relevant law enforcement authorities:
Fraud Warning: bk4 actively monitors all account activity for signs of fraudulent behaviour. Accounts flagged for investigation will have withdrawal access suspended immediately pending the outcome of the review. bk4 cooperates fully with law enforcement authorities and financial institutions in relation to suspected fraud and money laundering.
bk4 is committed to promoting responsible gambling among all of its players. Gambling is intended to be a form of entertainment. If gambling ceases to be enjoyable or begins to negatively affect your finances, relationships, health, or daily functioning, it is important that you seek help and make use of the tools available on the bk4 platform.
The following responsible gaming tools are available to all registered bk4 players via the account dashboard without requiring contact with support:
For further information on our responsible gaming framework, please visit our Responsible Gaming page.
bk4 enforces strict age verification at registration and during KYC. Parents and guardians are advised to use parental control tools and internet filtering software to prevent minors from accessing gambling platforms. bk4 is an 18+ platform and will take all reasonable steps to detect and prevent underage gambling.
All content on the bk4 platform, including but not limited to the website design, graphics, logos, game interfaces, text, images, data compilations, and software, is the intellectual property of bk4 or its licensed content providers. Nothing in these Terms & Conditions grants players any right to reproduce, distribute, modify, publicly display, or create derivative works from any bk4 content without prior written authorisation.
Game titles, artwork, and mechanics provided by third-party studios including Pragmatic Play, Evolution Gaming, Ezugi, PG Soft, Habanero, Netent, Microgaming, and Spribe remain the intellectual property of the respective studios and are used by bk4 under licence. Players may not copy, extract, reverse-engineer, or otherwise exploit any game assets.
To the maximum extent permitted by applicable law, bk4's total liability to any player arising out of or in connection with the player's use of the platform — whether in contract, tort, or otherwise — shall not exceed the total amount deposited by that player in the 30 calendar days immediately preceding the event giving rise to the claim.
bk4 shall not be liable for any of the following, whether or not such losses were foreseeable or bk4 had been advised of their possibility:
bk4 does not warrant that the platform will be uninterrupted, error-free, or free of viruses or other harmful components. Players access and use the platform at their own risk and are responsible for maintaining appropriate security software on their own devices.
bk4 collects, processes, and stores personal data in accordance with its Privacy Policy, which forms part of these Terms & Conditions by reference. By registering on bk4, you consent to the collection and processing of your personal data as described in the Privacy Policy.
Key data processing activities conducted by bk4 include account administration, KYC verification, fraud prevention, transaction processing, responsible gaming compliance, and communication of account-related information and promotions. bk4 does not sell personal data to third parties. Data is shared only with service providers who process data on bk4's behalf and with regulatory or law enforcement authorities where required by law.
You may close your bk4 account at any time by submitting a written request to our support team at [email protected]. Account closure requests will be processed within 5 business days. Prior to closure, all pending bets will be settled in accordance with standard rules, any remaining real-money balance (after the deduction of any applicable bonus balance that has not met wagering requirements) will be returned to your registered payment method, and KYC verification must be complete before the final balance transfer can be made.
bk4 reserves the right to suspend or permanently close any player account at its sole discretion, with or without prior notice, in any of the following circumstances: breach of these Terms & Conditions; suspected fraud or money laundering; failure to complete KYC verification within a reasonable period; account inactivity exceeding 12 consecutive months; or where continued operation of the account poses a legal, regulatory, or reputational risk to bk4.
Upon account termination for cause (i.e., breach of terms), bk4 may withhold some or all funds pending an investigation. Where funds are determined to be the proceeds of fraudulent activity, they will not be returned. Where termination is not for cause (e.g., account closure at the player's request or due to regulatory change), verified real-money balances will be returned to the player's registered payment method within 10 business days.
bk4 reserves the right to modify, update, or replace any part of these Terms & Conditions at any time. When material changes are made, bk4 will notify registered players via their registered email address and/or via a prominent notice on the platform no fewer than 7 days before the changes take effect, except where immediate amendment is required for legal, regulatory, or security reasons.
The most current version of the Terms & Conditions will always be available at https://bk4.bio/terms-conditions. It is the player's responsibility to review the Terms & Conditions periodically. Your continued use of the bk4 platform following the effective date of any amendment constitutes your acceptance of the revised terms.
For any questions, concerns, or complaints regarding these Terms & Conditions or any aspect of your bk4 account, please contact our support team through the following channels:
If you have a dispute regarding the settlement of a bet, a transaction, or any other platform action, you must raise the matter with our support team within 30 days of the event giving rise to the dispute. Disputes raised after this period may not be investigated. bk4 will review all disputes in good faith and will provide a written response within 10 business days of receiving a complete and documented complaint.
These Terms & Conditions are written in English. In the event of any translation being made available for convenience, the English language version shall prevail in all cases of ambiguity or conflict.
Support Hours: Our team operates on Bangladesh Standard Time (BST, UTC+6), 24 hours a day, 365 days a year. For urgent account security matters, use the live chat option for the fastest response.
Our support team is available 24/7 to help clarify anything in these Terms & Conditions. You can also explore our FAQ or visit the Responsible Gaming page for more guidance.