UK players used to top up casino accounts via phone bill deposits, often with...

https://sierra-wiki.win/index.php/How_Did_the_Shift_to_Debit-Based_Deposits_Change_Casino_Payment_Pages%3F

UK players used to top up casino accounts via phone bill deposits, often with limits around £30 per transaction. Now, Faster Payments and mobile apps like Apple Pay let you deposit as little as £10 instantly