Online bookmaker Betr has begun the slow process of paying tens of millions of dollars to its customers after the young start-up’s 100-1 promotion caused the largest payout in sports gambling history.

Tens of thousands of Australians flooded the new company’s app nearly a year ago, placing lucrative $10 bets on the Penrith Panthers at the promotional 100-1 odds. On Sunday night, the Panthers stunned the Brisbane Broncos 26-24 to win their third consecutive premiership title.