Horrible service cant close my account

I had a chat on 22 September 2019 with ref CAS-***-F6V2M5 to close my account as i can no longer afford, its so disappointing to think that it took minutes online to open this account but a lifetime to close it. Every time i follow up im told a request has been logged. On 7 December 2019 i asked the consultant i was chatting to on my service suite how long it takes to close an account and i was told they cant confirm a time-frame. Now they have the guts to send me sms that they will be issuing a section 129 notice because the account is overdrawn, its overdrawn because i cant afford the charges and i asked for the account to be closed on 22 September. Even the FNB complains sections is horrible, no response and assistance. I have proof of all the communication regarding the request to close of this account.