25 years with FNB - moving to a different bank

I have been with FNB for 25 years, and am changing banks. I closed my credit account, and FNB reopened the account to pay a merchant I didn't want paid. I unwittingly subscribed to eDreams - which turned out to be a **** company - and was charged monthly. I CANCELLED the card I used, and FNB continued to send the money to eDreams. So with no other option, I CLOSED the account, and FNB RE-OPENED it to pay the merchant. I've sat in the branch for hours trying to get this resolved and have been assured they will reclose it and not open it to pay anyone else. But how can they reopen and pay someone from a closed account in the first place? I'm done - closing my FNB accounts and going to try a different bank. Profoundly disappointed.