UK players no longer rely just on phone bill deposits, which often had limits...

https://wiki-room.win/index.php/Why_Were_Phone_Bill_Deposits_Popular_with_Casual_Players%3F

UK players no longer rely just on phone bill deposits, which often had limits like £30 per transaction. Instead, they use Faster Payments and modern mobile options that clear money quickly and let them deposit as little as £10