UK players used to top up casino accounts using phone bill deposits, typically...

https://danteuoqx487.theburnward.com/paypal-vs-debit-card-for-privacy-which-shows-up-clearer-on-statements

UK players used to top up casino accounts using phone bill deposits, typically capped around £30 per transaction. Now, Faster Payments and mobile wallets let them deposit as little as £10 instantly