Bad service - endless inconsistency

On the 19th November 2021, i had an existing temp loan on my cheque, which was obtained on the 16th November. My problem started when I received a deposit on my account and that amount unfortunately settled the temp loan and was not for the temp loan. I spoke to the bank and unfortunately they couldn't assist me as the repayment for the temp loan was already in place. I then tried to request an increase on my over draft, while doing that, i erroneously upgraded my account to a private banker instead. I called the bank and requested to correction to be done - CAS - ***-P6H6R3 time of call 15.46pm. Tgis guy told me that the turn around time is 7days. So i followed up on the 3rd December, spoke to Stella - who then emailed her manager to follow up and return to me, i specifically told her that, i need this to be corrected as i do not want to pay the fees for private account as i can't afford a private account. My account gets billed on the 15th monthly and I don't want this error to prolong till then. Till today I have not received any feedback from anyone. I called in again today and I got authenticated and put through to someone and got cut off, the person never returned my call, and I am by the way on private banking... So i call back and Mampai is following up for me as this request was ignored from the on set. Call ref is RW***