Disgusting and Unfair treatment

My fiance had an account with FNB and was retrenched. he notified the bank that he was retrenched and unable to make payment on his temporary loan. When he was working and able to pay he called his branch - Bracken city to make arrangements and to ensure that his account was still open. he was advised that his account was open and he made arrangements to pay off the loan once the salary was transferred in. When his employer tried to pay the salary - he was advised that the transfer was rejected. he contacted the branch and was told his account was closed and they were not able to reopen it. He was never notified at any time that his account was closed. he has spoken to fnb so many times and not once did anyone tell him his account was closed. He then tried to open a new account on his off day - FNB no longer open on sundays.... he still wants a fnb account - dont know why and needs help in getting an account open due to his working hours.... FNB IS NOT WILLING TO HELP.