UK players are moving away from phone bill deposits, which often had limits...

https://www.bookmarking-maze.win/uk-players-used-to-rely-on-phone-bill-deposits-often-capped-at-30-per

UK players are moving away from phone bill deposits, which often had limits like £30 per transaction, to Faster Payments and mobile methods. These newer options offer quicker transfers and lower minimum deposits, sometimes just £10