3666ber regularly rolls out new promotions — from welcome bonuses for new members to cashback, reload bonuses, and special tournament offers for existing players.
Open a new account at 3666ber and get a 100% bonus on your first deposit — up to ৳5,000. Minimum deposit is just ৳500.
The 3666ber promotion system is straightforward. Just follow the steps below.
Sign up for free at 3666ber. All you need is your mobile number — your account is ready in 2 minutes.
Choose your preferred promotion on this page and click the "Claim" button.
Deposit via Mobile Pay or Nagad. The bonus will be credited to your account automatically.
Place bets using your bonus balance. Once the wagering requirements are met, you can proceed with a withdrawal.
Last Updated: January 2026
Make your first deposit at 3666ber and get a 100% match bonus. Deposit a minimum of ৳500 and receive up to ৳5,000 in bonus funds.
Every Monday, receive 10% cashback on your net losses from the previous week, up to ৳2,000. No wagering requirements.
Invite friends to 3666ber. Get ৳300 for every friend who registers and makes their first deposit. No limit — more friends means more bonuses.
Deposit every Friday and get a 50% reload bonus, up to ৳3,000. Minimum deposit ৳1,000.
Get a 20% extra bonus on every bet placed on any Bangladesh international cricket series. Applies to each bet throughout the series.
Earn points on every bet and climb from Bronze to Diamond. Higher tiers unlock better cashback rates, faster withdrawals, and a dedicated personal manager.
Get 15% cashback on your net losses in Live Casino games every week, up to ৳3,000. Credited every Wednesday.
Download the 3666ber app and get ৳200 in free bet credits on your first login. Available to both new and existing users.
3666ber is offering multiple bonus packages this Eid. Get a deposit bonus, free bets, and cashback — all together.
All Promotion Details at a Glance
Promotions and bonuses have become standard practice on online betting platforms in Bangladesh. But not all promotions are created equal — some platforms advertise attractive bonuses while burying the real terms in the fine print. 3666ber doesn't do that.
Every promotion clearly states its full terms — how many times you need to wager, the validity period, and which games qualify. Everything is laid out upfront. No hidden conditions.
The welcome bonus wagering requirement is just 5x — much lower than most competitors. Weekly cashback comes with only a 1x wagering requirement, meaning you can withdraw it almost immediately.
The welcome bonus is the best value for new users. Deposit ৳500 and get another ৳500 in bonus — meaning you start with double the balance.
The weekly cashback is ideal for regular players. Win and you're ahead — lose and you still get 10% back. It works like a safety net.
The cricket series bonus gives fans something extra to look forward to. Place a bet on a Bangladesh match and earn an additional 20% bonus bet — a genuinely attractive deal for cricket lovers.
If you have a wide social circle, the referral program is your best bet. Earn ৳300 per friend with no cap — refer ten friends and pocket ৳3,000.
If a bonus doesn't credit automatically, go to the "Promotion" section in your account and check whether the offer is active. Some bonuses need to be claimed manually.
If you run into any issues, reach out to 3666ber's live chat support. Most queries are resolved within minutes. The support team speaks Bangla, so you can get help without any language barrier.
Special bonuses will drop as soon as the BPL season kicks off. Earn extra points with every match bet.
Extra daily deposit bonus throughout Ramadan. A special 30-day offer.
To celebrate 3666ber's anniversary, enjoy a 150% deposit bonus for a limited time.
Terms & Conditions apply to all promotions. Please read the full terms before claiming any bonus. Gamble responsibly.
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