Signed Account Closure. Keep getting billed ??

It took me 20 public complaints to correctly open an account a few years ago. Now to close the account I am going through the same struggle. Filled out the Consumer Credit Card Account Closure form (Ref: ***) on the 9th February 2022, now my credit rating is getting hammered as I keep getting requests saying I owe an outstanding amount as monthly fees have kept happening to due the request not being submitted correctly on FNB side.

I keep phoning and speaking to consultants with promises of escalation and deadlines when it will be corrected, and I just keep getting notifications of non-account closure, more billing, and more empty promises from FNB to help. Hands down the least competent organisation I have dealt with in my life.