You definitely want to be using the Sky ecosystem for that. Check out
Sky Casino It shares a "single wallet" with Bet, so your winnings from the football are instantly available to use at the Casino tables. It saves so much hassle. I switch between the sportsbook and the live roulette tables all the time, and it’s seamless. Plus, it’s a massive UK brand, so you know your money is safe.
I usually put a few quid on the Premier League at the weekend, but I fancy playing some Blackjack during half-time. Is there a site where I can use the same balance for both without having to transfer money back and forth?