Help Centre
tk644 Frequently Asked Questions
From opening an account to withdrawing money via bKash — find answers to all common questions in one place.
Whether you are new to tk644 or an experienced player, this FAQ page is here to give you quick answers to any question. Below, questions and answers are organised into five sections: Account and Registration, Deposits and Withdrawals, Games and Rules, Bonuses and Promotions, and Security and Responsible Gaming. If you cannot find the answer to your question here, contact our 24/7 live chat support.
Section 01
Account and Registration
To open an account at tk644 you need an active mobile number and a password. The registration process is completed entirely online and takes only a few minutes. Only people aged 21 or above can create an account.
No, only one tk644 account is allowed per person. Creating multiple accounts may result in them being cancelled and bonuses being forfeited. This rule is strictly enforced to ensure fair play.
Click the "Forgot Password" option on the tk644 login page. Verify with your registered mobile number to reset your password. If you have trouble, our support team is ready to help via live chat.
Identity verification may be required for withdrawals above a certain amount. The process is completely secure and your information is kept safe. Completing verification on time speeds up the withdrawal process.
Yes, tk644 is fully optimised for mobile browsers. Log in and play from the browser on any Android or iOS smartphone. No separate app download is needed.
Section 02
Deposits and Withdrawals
Deposits from bKash to tk644 are generally credited to your account instantly. Enter the correct amount and reference number in the payment portal. The minimum deposit amount is ৳100. If there is any delay, contact us via live chat with a screenshot.
Yes, withdrawals via Nagad are straightforward. The minimum withdrawal amount is ৳1,000. After making a withdrawal request, the money usually reaches your Nagad number within 5 to 30 minutes.
Yes. tk644 supports both Rocket and Upay. Just like bKash and Nagad, the minimum deposit is ৳100 and the minimum withdrawal is ৳1,000. Withdrawal time is the same — 5 to 30 minutes.
tk644 does not charge any additional processing fees on deposits or withdrawals. However, your mobile banking service provider may apply their own transaction charges in accordance with their own policy.
Withdrawal requests at tk644 are generally processed within 5 to 30 minutes. The process is even faster for verified accounts. The same timeframe applies at night and on holidays.
If more than 15 minutes have passed and the deposit has not been credited, take a screenshot or transaction ID from your mobile banking app and contact tk644 live chat support. Our team will resolve the issue promptly.
Section 03
Games and Rules
To bet on BPL matches, log in to tk644 and go to the cricket section. Select the series and match, choose a betting market (winner, top batter, total runs, etc.), set your amount and confirm the bet. Odds may change during live betting.
Aviator by Spribe is a crash-style game. A plane takes off and a multiplier keeps increasing. You must cash out before the plane crashes. If you do not cash out in time, your stake is lost. The result of each round is completely random and verifiable.
Yes, in the live casino section of tk644 you can play roulette, blackjack, baccarat and many other games in real time with real dealers. The games are powered by high-quality live streaming technology from Evolution Gaming and Ezugi.
RTP (Return to Player) is the theoretical percentage of total wagers that a game returns as prizes over the long term. It is an average across millions of rounds — your results in one or a few sessions can be much higher or lower. Each spin or round is determined independently by an RNG.
In most slot games, a bonus round or free spins are triggered when a specific number of scatter or bonus symbols land at the same time. Rules vary by game — check the paytable or info panel in the game for details. Popular games like Fortune Tiger and Gates of Olympus have attractive bonus features.
If the connection drops, the result of the current round is saved on the server. Log in after reconnecting and you will be able to see the result of the last round. If there is any discrepancy, let us know via live chat support.
Section 04
Bonuses and Promotions
A 120% bonus of up to ৳10,000 is available on your first deposit at tk644. That means depositing ৳1,000 gives you ৳1,200 in bonus. To withdraw the bonus, you must wager the total of your original deposit plus the bonus amount 10 times.
The wagering requirement indicates how many times you must place bets before you can withdraw a bonus. At tk644 the welcome bonus wagering requirement is 10x. For example, if you receive a ৳1,000 bonus you must wager a total of ৳10,000 before withdrawing. Not all games contribute equally to wagering — see the terms and conditions page for details.
There is no separate application for the tk644 VIP programme — you move up automatically through regular play. There are five tiers from Bronze to Diamond. At the Diamond tier, weekly cashback can be up to 1.0%.
A set percentage cashback is given on your net losses for the week based on your VIP tier. The cashback rate is 0.2% at Bronze, 0.4% at Silver, 0.6% at Gold, 0.8% at Platinum and up to 1.0% at Diamond. Cashback is generally added at the start of the week.
Generally you cannot accept a new bonus while one is already active. Complete the wagering requirement for the current bonus or cancel it before accepting a new one. Check the tk644 promotions page for the specific terms of each promotion.
Section 05
Security and Responsible Gaming
tk644 uses SSL encryption technology to keep all your personal and financial information secure. Your data is never sold or shared with third parties. You can find complete details on our privacy policy page.
Yes, tk644 places great importance on responsible gaming. You can set deposit limits, time limits or activate self-exclusion. Contact our 24/7 live chat support to use these features, or read the responsible gaming page.
Self-exclusion is a feature that lets you temporarily close your account for a set period. During this time logging in or placing bets will not be possible. Let the support team know and they will activate it quickly. It is completely free and confidential.
No. tk644 is strictly for people aged 21 and above only. Age is verified when creating an account. We are committed to keeping minors away from gaming. If you know of a minor using this platform, please notify us immediately.
If gaming is starting to affect your daily life, family or finances, you should seek expert help. The tk644 responsible gaming page has detailed guidance and support information. Our live chat support is always ready to help you set up self-exclusion or limits.
Yes. All games at tk644 are from reputable providers including Pragmatic Play, PG Soft, JILI, Spribe and others — all of whom use Certified RNG (Random Number Generator) technology. The result of every game is completely random and cannot be manipulated in any way.
More Help
Still have questions? We are here
Our support team is by your side 24 hours a day, 7 days a week — in Bengali.
Live Chat Support
Contact our live chat for instant assistance. Chat in Bengali and get quick solutions. Active 24/7.
Email Support
For detailed questions, email us at: [email protected] — we will reply as soon as possible.
Terms and Conditions
To learn the detailed rules on bonuses, withdrawals and accounts, read our Terms and Conditions page.
Join tk644 — start playing today
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