FNB won’t downgrade or even close my account

It's been over a year I have requested that they downgrade my account since I am no longer in the country and I won't be making use of my current account. Since the beginning of 2020, I have emailed, called chat and still no feedback with my request, my monthly charges are still adding up every month and no one will assist me.

I then requested my account to be closed after I settled all my accounts and moved all my funds out of the account. the account remained opened and I had to go back and pay the charges, left it with a zero balance, requested another account closure and I am still yet to hear from you. No replies to my email's request, call services are the worst. Is there any solution to this mess? I am nearly going for 2yrs with this simple issue, how hard can this be?