Setting a deposit limit lets you control how much money you add to your account...

https://www.play-bookmarks.win/setting-deposit-limits-helps-you-keep-your-gambling-spending-in-check-by

Setting a deposit limit lets you control how much money you add to your account each day, week, or month. Many sites let you pick a limit as low as £10. It’s a simple way to keep your gambling within a budget you’re comfortable with.