FNB refusing to close Cheque accounts

After numerous attempt to close your FNB Cheque accounts for the last 2 months, FNB still failed to close the accounts, expecting us to still pay the monthly fees for their mistakes. We went to the branch 4 times instructing the account to be closed. We were informed that the accounts have been moved to a level 4 high risk for some reason and that they need to email another department to remove the risk so that we can close the accounts. We were also instructed not to pay any money into the accounts now till they phone us and give us feedback. After waiting the whole of February 2019 and March 2019, I decided to contact FNB telephone banking for assistance. We were then advice to write letters formally requesting the accounts to be closed. I did this, paid the services fees which was by this time R1050 for both the accounts and submitted it to the relevant depart as per instruction. This was all done on the 25th of March 2019. When locking into our accounts today 02 April 2019, the accounts is still active with additional charges of R199 per account again. This is not acceptable. FNB is the worst bank ever!!!!!!!!!!!!!!!!!!!!!!!!!!!!! full of empty promises and good for nothing.