why wait any longer when you've already confirmed that you've won your jackpot? It's very risky to leave your money with any platform you won your jackpot with regardless of the reasons. Maybe for the sake of security reasons, you can decide to wait for a day or two before going to pick your money but waiting longer than that except it's clearly spelt out as a terms and condition that you can't take your money until a said day and even if such thing exist, it's unfair to the winner  of the jackpot since you can't actually tell if he has an immediate need he would possibly use the money for after winning the jackpot.

Normal sports betting allows you to take your money at any convenient time from the day you've won your bet and I guess that's the best thing to do even in the case of winning a jackpot.