UK players used to rely on phone bill deposits, often capped at around £30 per...

https://wiki-aero.win/index.php/Can_I_Use_Visa_or_Mastercard_on_Mobile_Without_Typing_Everything_Every_Time%3F

UK players used to rely on phone bill deposits, often capped at around £30 per transaction. Now, Faster Payments and mobile wallets make depositing quicker and easier