2 months wait for a debit order date change

Tried changing my debit order loan date to the end of the month, since I’m self employed, had a case number

August 19th : The debit order date change request has been logged, please note your reference number below. CAS-***-F9F8B7. Please allow for a business day for servicing.

No change, case still in progress two months later now getting asked by Jenny Lee in secure chat to provide a HR letter, to amend the date then asked to provide a salary letter yet I’m self employed absolute terrible service when I was a private client not too long ago premium account what are we paying for ? For fun? Useless ness by fnb to change a debit order date something other banks do on your app or just with a simple click. I haven’t recieved any responses before my second request regarding what they wanted anyways just silence I have to chase the bank for things I requested