I have to beg FNB to close my cheque account

I have been requesting FNB to close my cheque account for over a week now. I took a settlement agreement and paid on Thursday 11/11/2021. To date my account has not been closed. Further to that, I have been chatting with their consultants via the FNB app since Friday requesting that my account be closed. REf number I got on Saturday the 13/11/2021 was CAS-***-TSK0L9. I Honestly do not think it takes over a week to close an account. Now this account will be incurring monthly fees of over 300 and I will be expected to pay it? Which is the same reason I left FNB as I could not afford their monthly fees. This is really unfair and I am at a point where am literally begging for this account to be closed.