Fresh vouchers and promo codes are available on 3k io every day — from Welcome Bonuses to cashback, Free Spins, and referral rewards. Pick the offer that suits you and get more out of every session.
All vouchers below are currently active. Copy the code, make a deposit, and enjoy your bonus.
Applying a voucher code at 3k io is quick and easy. Just follow the steps below.
Log in to your 3k io account. New here? Registration is free and takes under 2 minutes.
Go to the Wallet or Payment section, select the Deposit option, and enter the amount.
Paste the copied code into the "Promo Code" or "Voucher Code" field. The system will verify it automatically.
Once payment is confirmed, the bonus will be credited to your account automatically. Some bonuses are instant; others may take a few minutes to appear.
In the 3k io Loyalty Program, every bet you place earns points, and the rewards get better as you climb to higher tiers.
When you deposit with a promo code, the bonus is credited to your account instantly in most cases.
At 3k io, every bonus comes with clearly stated wagering requirements and terms. No hidden conditions.
New promo codes and bonus offers are launched for every major cricket and football event.
Compared to the market, 3k io's rollover requirements are significantly lower – especially on cashback bonuses.
Bonus offers are standard across online betting platforms these days — but not all bonuses are created equal. Some platforms bury their bonuses in conditions so complicated they're nearly impossible to use. 3k io is different: every voucher and promo offer comes with terms that are straightforward, transparent, and actually achievable.
The Welcome Bonus is 3k io's most popular offer. New members get a 100% bonus on their first deposit, up to ৳5,000. So if you deposit ৳5,000, your balance becomes ৳10,000. You can use this bonus on Sports Betting or casino games — your choice. The 10x wagering requirement may sound steep, but in practice it's very manageable for regular bettors.
The weekly cashback offer is a firm favourite among 3k io's regular members. Every Monday, 15% of your previous week's net losses is automatically credited back to your account. The wagering requirement is just 1x — meaning you only need to place one bet before withdrawing. Low-condition cashback like this is rarely seen in the Bangladesh betting market.
For major cricket events like the IPL, World Cup, or BPL, 3k io launches exclusive voucher codes. These are typically time-limited and offer benefits such as odds boosts, extra cashback, or free bets. Check this page regularly and keep an eye on the ticker so you never miss an offer.
3k io's referral program has become hugely popular within Bangladesh's betting community. When a friend signs up through your personal referral link and completes their first deposit, you receive ৳500 and your friend receives ৳500 as well. There is no cap – every friend you bring in earns you a separate bonus. Many members earn several thousand BDT each month from referral bonuses alone.
The Free Spins offer is a standout for casino fans. Deposit ৳1,000 or more and use the code SPIN50BD to receive 50 free spins. Winnings from these spins carry just a 5x wager requirement – remarkably low by slots bonus standards. The free spins can be used on selected slot games at 3k io, and many players have walked away with significant wins.
Joining the loyalty program is completely automatic – no separate registration needed. The more you bet, the more points you accumulate and the higher your tier climbs. Reach Gold tier and you'll be assigned a dedicated account manager who provides personal analysis ahead of big matches. The VIP Diamond tier isn't for everyone, but those who reach it enjoy a truly different experience.
One important tip for using bonuses at 3k io: if you have multiple active bonuses at the same time, you can set the priority order in your settings. In most cases the Welcome Bonus is applied first, followed by the others. Cashback bonuses are added last and count as real money. The 3k io support team is on hand to answer any bonus-related questions quickly.
Sign up, enter the code, and get a 100% bonus on your first deposit. Simple terms, instant payment.
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