In the UK, casino deposits once relied on phone bills with limits like £30 per...

https://oscar-wiki.win/index.php/Why_Did_Phone_Bill_Deposits_Have_Such_Low_Limits_in_the_UK%3F

In the UK, casino deposits once relied on phone bills with limits like £30 per transaction. Now, players use Faster Payments and mobile wallets for quicker, safer deposits