Which payments you can accept

Open Settings and tick the methods you take. The counter then offers exactly those, which keeps the payment screen short and stops a cashier booking money to a method your shop does not use.

Bangla QR is its own method, not a kind of bKash. The customer pays from whichever app they have and the money reaches your bank account directly, so recording it as a named wallet would put money in a line your bank statement does not have — and the day close would stop agreeing with the account it settles into.

Credit (বাকি) is a method too, and worth keeping on even if you rarely use it — a sale recorded as credit is one you can chase, and a sale recorded as cash that never arrived is one you cannot.