Latest Offers & Bonuses
C3666 has something for everyone — new and existing members alike — including a generous welcome bonus, weekly cashback, reload offers, and VIP rewards. New offers drop daily, so check back regularly.
Exclusive offers crafted for all c3666 members — claim yours now
Get a 100% bonus on your first deposit, up to BDT 10,000. It's the best reason to join c3666 — open a new account and start with double the balance right away.
Claim NowDeposit every Monday and earn a 50% reload bonus, up to BDT 5,000. A special reward from c3666 for loyal members — a fresh opportunity every week.
Log InGet 10% cashback on your total bets from the previous week, every Monday. Even when you lose, you get something back — c3666 has you covered.
JoinInvite your friends to join c3666. When a friend registers and completes their first deposit, you'll earn BDT 300 in bonus funds — and your friend will receive a welcome bonus too.
Share NowGet a 20% odds boost on live betting for selected cricket and football matches. Every major match in the c3666 Sports section features special promotional odds.
Watch SportsDownload the c3666 app and log in for the first time to receive BDT 200 in free betting credits. Available for both Android and iOS devices.
Download the App
Claiming a bonus at c3666 is simple — just follow these four steps
Create your free c3666 account in just 2 minutes using your mobile number.
Enter the applicable promo code at the time of deposit. Some offers are applied automatically.
Deposit via bKash, Nagad, or Rocket. Minimum deposit of just BDT 200 is all it takes to activate the bonus.
The bonus balance is credited directly to your account. Use it on any game or bet.
As the number of online betting platforms in Bangladesh grows, so does the competition. But c3666 has stood apart from the start — our promotions are not just designed to attract new members; we put equal focus on rewarding and retaining existing ones.
Many platforms lure new members in with a big bonus and then offer nothing more. c3666 is different. Fresh offers arrive every week and every month — reload bonuses, cashback, free bets — all available consistently for regular members.
The c3666 welcome bonus is one of the best among betting platforms in Bangladesh. As a new member, the 100% first-deposit bonus means depositing BDT 5,000 earns you another BDT 5,000 in bonus funds — giving you BDT 10,000 to kick things off.
There are no complicated conditions to claim this bonus. Simply register, make your first deposit, and the bonus is credited to your account automatically. The turnover requirement is straightforward and transparent — no hidden strings attached.
You can't win every bet — but at c3666, a loss doesn't have to leave you empty-handed. Weekly cashback is calculated based on your total bets. Silver members receive 3%, Gold members receive 7%, and Platinum members receive up to 15% cashback.
Cashback is credited to your account every Monday morning. No application needed, no code required — the system calculates and applies it automatically.
A minimum turnover requirement applies to all bonus offers. Bonus balance cannot be withdrawn directly; the specified bet amount must be wagered first. For full terms and conditions, Terms & Conditions Page page.
C3666's reload bonus program is designed with regular players in mind. Deposit every Monday and earn up to 50% in reload bonuses. Special reload offers are also available during cricket and football seasons.
Your reload bonus can be used across Sports Betting, Live Casino, or fish games — no category restrictions, giving you complete freedom to play where you want.
The c3666 referral program is straightforward and rewarding. Grab your unique referral link or code from your account. When a friend registers using your code and makes their first deposit, you'll receive BDT 300 in bonus funds instantly. Each additional referral earns you a separate bonus.
On top of that, the more active your friend stays, the more referral commission you earn — making this a solid passive income opportunity over the long term.
C3666's VIP program takes your promotion benefits even further. Gold and Platinum members enjoy exclusive birthday bonuses, monthly loyalty bonuses, and access to special events. VIP members also get dedicated match-day offers featuring odds boosts and free bets.
The more you deposit each month, the higher your VIP tier climbs — and the better your promotion benefits get. It's a rewarding cycle: play more, earn more.
C3666 is committed to responsible gaming at all times. Claim your bonus and enjoy — but always stay within your budget. This platform is not for anyone under 18. Visit our Responsible Gaming Page page.
Many members have common questions about bonuses and promotions. Find the answers below. For more details, check our FAQ section and Terms & Conditions page.
Find answers to the most frequently asked questions here