I placed a 170 EUR bet (ID 257628324) on George Russell to win the Formula 1 Singapore Grand Prix 2025 at boosted odds of 30.00. The market was openly available for 3 days, and my bet was active for 13 hours. Just 2 hours before the race on October 5, 2025, Cosmobet voided my bet, claiming a "technical error" in the odds, and only refunded my 170 EUR stake. George Russell won the race, making my bet a clear winner (4,930 EUR winnings at odds 30.00).Their support (Henry/Support Agent, email and chat transcript submitted elsewhere) admitted the error was theirs but refused to pay my winnings or even compensate at the "correct" odds of 10.00 (1,530 EUR winnings), which I offered as a fair compromise. Voiding a bet so late, after 13 hours of acceptance and no prior warning, is unfair and feels like a deliberate attempt to avoid payout. This is unacceptable and unprofessional.I’ve filed complaints with the Curaçao Gaming Control Board, AskGamblers, and Casino Guru, providing all evidence (chat transcript, email). I urge others to avoid Cosmobet – they don’t honor legitimate winning bets and hide behind "technical errors." I’m pursuing this until I get my rightful winnings!
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