UK players have moved from paying by phone bill, which often capped deposits...
https://www.apu-bookmarks.win/uk-players-used-to-rely-on-phone-bill-deposits-often-capped-at-around-30-per
UK players have moved from paying by phone bill, which often capped deposits around £30, to Faster Payments and mobile wallets. These modern options make it easier and quicker to deposit as little as £10