UK players moved from phone bill deposits, often capped at £30 per transaction,...

https://mega-wiki.win/index.php/Are_Apple_Pay_and_Google_Pay_Available_for_UK_Casino_Deposits_Yet%3F

UK players moved from phone bill deposits, often capped at £30 per transaction, to Faster Payments and mobile wallets. These methods allow deposits as low as £10, offer quicker processing, and give players more control over their funds