Current Offers
Ok big Promotions — New Every Day Bonus & Rewards Opportunities
From Welcome Bonuses to daily cashback, referral rewards to VIP perks — ok big has something for every member. Browse all the top offers in one place.
Current Offers
From Welcome Bonuses to daily cashback, referral rewards to VIP perks — ok big has something for every member. Browse all the top offers in one place.
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Get a 100% bonus on your first deposit — deposit ৳500 and get ৳500 bonus, deposit ৳10,000 and get the full ৳10,000. If you're new to ok big, this is one offer you really shouldn't miss.
Claim NowEvery Monday, ok big calculates your net Sports Betting loss from the previous week and returns 10% of that amount directly to your account. A great deal for regular players.
Check EligibilityBet on any international cricket match at ok big this season and earn an extra 15% bonus on your winnings. Win on a Bangladesh match and get double the bonus.
Bet on MatchesWhether you're playing Baccarat, Roulette, or Blackjack at ok big's Live Casino, you earn a 0.8% rebate on every bet. For high-volume players, that adds up to a significant amount each month.
Go to CasinoInvite a friend to ok big. Once they register and make their first deposit, you earn a ৳500 bonus. The more friends you bring in, the more you earn — with no cap.
ReferOk big VIP Program Diamond-tier members receive exclusive cash rewards, a dedicated personal account manager, and access to special tournaments every month.
Go VIPLog in to the ok big app every day and claim 10 Free Spins. Use them on selected slots games — any winnings go straight to your wallet.
Download AppDeposit at ok big every Friday and get a 50% Reload Bonus. Stock up your balance and head into the weekend's matches ready to go.
ReloadOk big doesn't forget your birthday! If you've added your date of birth to your profile, a ৳2,000 bonus will be automatically credited to your account on your special day.
Complete Your Profile
Claim any ok big offer in just a few simple steps
Go to the registration page and create an account with your mobile number. It takes just 2 minutes.
Click on your preferred offer on this page. Some offers are applied automatically; others need to be manually activated.
Deposit the minimum required amount to qualify for your chosen offer.
Once the conditions are met, the bonus will be automatically added to your wallet — this may take up to 5 minutes.
Place bets using your bonus balance. Once the wagering requirement is met, your winnings are yours to withdraw.
Each bonus comes with specific wagering requirements. Click on the relevant offer card for full terms and conditions, or Rules & Terms Visit the page.
Refer a Friend, Both of You Win
Ok big's referral program is simple and rewarding. Share your unique referral code with a friend. Once they register using your code and make their first deposit, you get ৳500 and your friend gets ৳250 as a bonus.
Click to copy code
The More You Play, the Bigger Your Rewards
| Tier | Monthly Betting | Cashback | Monthly Bonus | Special Benefits |
|---|---|---|---|---|
| Bronze | ৳0 – ৳50,000 | 5% | ৳500 | Free Spins |
| Silver | ৳50,001 – ৳2 Lakh | 7% | ৳2,000 | Priority Withdrawal |
| Gold | ৳2,00,000 – ৳10,00,000 | 8.5% | ৳10,000 | Dedicated Support |
| Diamond | ৳10 Lakh+ | 10% | ৳50,000+ | Personal Manager |
Online betting sites often advertise big bonuses, but most come buried in conditions that make them nearly impossible to use. ok big breaks that mold. Every offer here is built with Bangladeshi players in mind — practical, easy to understand, and hassle-free to claim.
Take the Welcome Bonus, for example. Many sites promise a bonus on your first deposit, only for it to disappear in a maze of fine print. At ok big, it's straightforward — 100% of your deposit is added to your account, and you can withdraw once you've completed just 15x wagering.
Wins and losses are both part of betting. ok big's cashback program acknowledges that reality. If you end the week with a net loss, ok big gives a portion of it back — not just on paper, but as real money credited to your account every Monday. Many regular players say this weekly cashback is the highlight of their week.
The Live Casino rebate works the same way. 0.8% may sound small, but for players who regularly enjoy Baccarat or Roulette, it adds up to a substantial sum by month's end. ok big Diamond members can earn thousands of BDT in rebates alone every month.
Eid, Pohela Boishakh, Cricket World Cup — ok big runs special promotions for these milestone moments. For every Bangladesh victory at the Cricket World Cup, ok big rewards you with an exclusive bonus. It's not just an offer; it's our shared celebration.
Ok big keeps the action going through Ramadan. Each day, a limited-time offer drops before Iftar — available for that day only. These culturally relevant promotions are what set ok big apart from other betting platforms in Bangladesh.
Frequently Asked Questions About Promotions