Use Dutch-Bangla Bank's Rocket mobile banking to deposit funds and withdraw winnings at Big TK — no separate app needed, everything works straight from your phone's dial pad.
Depositing at Big TK with Rocket takes just four steps and typically wraps up in under 5 minutes.
Log in to your Big TK account and go to the "Deposit" section.
Select "Rocket" from the list of payment methods and enter the amount.
Dial *322# from your phone's dial pad and follow the prompts to complete the payment.
You'll receive an SMS confirmation and your Big TK balance will update automatically.
Rocket is Dutch-Bangla Bank's mobile banking service, operating in Bangladesh since 2013. Millions of people across the country use it for everyday transactions. Big TK added it as a payment option because it operates under DBBL's oversight, so there's no question about its security.
| Type | Minimum | Maximum (per transaction) | Processing Time |
|---|---|---|---|
| Deposit | ৳500 | ৳50,000 | Instant |
| Withdrawal | ৳500 | ৳1,00,000 | 15–60 minutes |
| Daily Withdrawal | — | ৳1,00,000 | 00:00 reset |
Mobile banking in Bangladesh has evolved far beyond simple money transfers — it's now woven into everyday life. Rocket has been at the forefront of that shift. Launched under Dutch-Bangla Bank, the service is equally at home in rural villages and city centers. Big TK has integrated this trusted platform into its payment system so players across Bangladesh can deposit with ease.
A lot of people ask — why use Rocket when bKash or Nagad are available? The answer is straightforward: Rocket is directly tied to a state-affiliated bank (DBBL). That connection makes many users feel more confident with larger transactions. It also makes it easy for DBBL account holders to move money directly from Rocket into their bank account.
If you don't have a Rocket account yet, setting one up is straightforward. Dial *322# from your phone to begin registration, or visit your nearest DBBL bank branch or agent point with your national ID. Once your account is active, simply add the number to your Big TK profile and you're ready to make payments.
Big TK charges no fees of its own for deposits or withdrawals. However, Rocket's standard transaction charges may apply, depending on your Rocket account type and the transaction amount. Cash-out and person-to-person transfers typically carry a set charge. Check Rocket's official information for the latest fee schedule.
You can pay at Big TK using either the Rocket Android app or USSD (*322#). USSD is the ideal option for those without a smartphone or with a weak internet connection. Smartphone users can use the "Send Money" or "Payment" option in the app. Either way, the payment is processed the same way on Big TK's end.
Big TK's payment team is active around the clock, though during peak hours (6 PM to 11 PM) higher request volumes can cause slight delays. Withdrawal requests placed in the morning or early afternoon are typically processed the fastest. VIP members' withdrawals are handled on a priority basis.
Under Big TK's security policy, the Rocket number used for payment must be registered in the same name as your Big TK account. Using someone else's number may cause the transaction to be held or delay the verification process. Always use a Rocket number registered in your own name.
Occasionally, network issues can cause a payment to stall. If that happens, wait 30 minutes first — most cases resolve automatically. If it doesn't, contact Big TK's live chat with your transaction reference number. The support team will coordinate with Rocket and get it sorted quickly.
When a payment is made via Rocket, your Big TK balance updates instantly.
Your transactions are protected on two levels — Rocket's PIN and Big TK's SSL.
No smartphone? No problem — dial *322# from any basic phone to make payments.
For any payment issues, get instant help through Big TK's Bangla live chat.
If you have a DBBL bank account, you can transfer funds from Rocket directly to your bank, making large withdrawals much more convenient.
Your full transaction history is available in the Rocket app or via the USSD menu — verify any transaction whenever you need.
Rocket works anywhere there's a mobile signal, from Dhaka to the most remote villages across the country.
Alongside Rocket, Big TK also supports Nagad and bKash. Use whichever you're most comfortable with.