Can I deposit cash over the counter at a UK bank?
No, you must not do this. Cash deposits have no trail of any sort, which means any work we do on Anti Money Laundering and Know Your Customer goes out the window. Because we want to show we're trying to do things as legitimately as possible, only bank transfers using online banking (or another valid method such as PingIt) are welcome.
If you do perform a cash deposit, Bittylicious and its sellers will hold your payment for 24 hours before refunding it or sending the coins onwards. This is because cash at a bank can be reversed if counterfeit notes are used.