Bad service Standard Bank

On the 4th of January 2019 I sent an email request to Change my Prestige bank account to a normal savings account as I had migrated my Cheque account to Absa. Needless to say I will leave out the reasons for moving my cheque account. This request was not actioned, and I sent a further email on the 9th Of January 2019 to further request for the change. Again, nothing was amended. On the 22nd of January 2019, I also sent a further request to change my revolving credit and my Home loan account to be debited from my Absa account. I received an email from the prestige banking department to furnish further details of which I did on the 23rd of January 2019. As of today, the 18th of July 2019, nothing has been resolved as per my requests. I then sent a further email to enquire if the reduction of the account had been done on the 29th of January 2019. Again no response was received on reducing the prestige account to a pure save account. To my own accord I then resorted to transferring money into my home loan account monthly and my revolving credit as to date my prestige account is still open. To date I have incurred charges worth R5449 .00 mainly due to returned debit orders especially on the home loan account and the Revolving credit which could have been avoided. No one from Standard bank has resolved this issue. This is appalling service as I have been a loyal Standard bank Customer since 2011 and I am now liable for an exorbitant amount of fees which could have been avoided. I now await for a response from standard bank and an explanation as to why all my requests have not been actioned and why I am liable for the fees above due to their incompetence.