UK players used to top up phone bill deposits with limits around £30 per...

https://riversexpertop-ed.iamarrows.com/can-you-still-deposit-at-a-casino-using-your-phone-bill-in-the-uk

UK players used to top up phone bill deposits with limits around £30 per transaction. Now, Faster Payments and mobile wallets let you deposit quickly and securely, often with minimums as low as £10