They have a counter service operated by the Post Office for some services like withdrawing and depositing cash and paying in cheques. HSBC said it was going to offer services in 100 shared banking ...

then select "Pay in a cheque". HSBC customers can also pay in one or more cheques up to £2,000 per day via the bank's mobile app. Simply log in, select "Pay & Transfer", and then "Deposit a cheque".