UK players have moved from paying by phone bill, which often capped deposits...

https://wiki-triod.win/index.php/Why_Do_Some_Casinos_Have_PayPal_and_Others_Do_Not%3F

UK players have moved from paying by phone bill, which often capped deposits around £30, to Faster Payments and mobile wallets. These modern options make it easier and quicker to deposit as little as £10