Karamba Sports is known for its generous welcome bonus, giving new customers a £10 free bet. Just deposit £20 and place a bet of odds of evens or greater - and the bonus will be yours.

New customers only. Minimum wagering on sport to activate the Welcome Offer is £20. One Free Bet Token will be awarded once you have made your first deposit and have bet £20 on Sports with odds of Evens (2.00) or greater. This bet must be settled within 14 days of bet placement to qualify.

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New UK customers only. Min accumulator bet £10. Min of 3 selections in accumulator, min odds per selection 1.70. Free bet stake not returned. Free bet valid for 30 days

The sportsbook of choice for high rollers - VIP treatment for the top depositors and a dazzling array of sports to bet on. One of the best welcome bonuses in the market.

New bettors get 50% of deposit up to £50; Once per household; Min deposit £15 (no Skrill/Neteller); Wager a total of 8 times deposit + bonus, with max qualifying bet stake equal to your initial bonus amount; Bonus expires after 60 days; Min odds of 4/5 on singles, or 2/5 per leg for acca; Some bet types excluded.

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Email bonus@energycasino.com with the subject line 5SPORTS. The bonus will be credited within 24 hours from emailing. Wagering requirements for the no deposit bonus: 7x turnover of the bonus amount, only accumulator bets with final odds of minimum 3/4. Minimum odds for each event 1/4. Return and voided bets do not count towards wagering requirements. 30 day turnover limit.

Betting Exchange Alternative to Betfair. Some of the best odds online, combined with low commissions.

This promotion is available to new customers only, who register using the promo code “MATCHBOOK30”. The free bet will be credited within 72 hours and have a seven day expiry. The bet must be placed at odds of 1.8 or more to qualify for the refund.