Cannot downgrade supposed private account

On 03/07 i visited fnb greenstone to downgrade my cheque account, i was told that this needed to be done via a suite and not at the branch. On 23/07 i contacted the suite with my request and was given a reference and told turnaround time was 3-7 days. On 25/7 i contacted them again and was told i need to wait the timeframe. It is now the 8/8 and still nothing from fnb. I continue to be charged for a higher account and this fnb pathetic service will never change. Try calling and all you get is a run around and a 1000 excuses. I think im done with fnb for such **** service on what suppose to be a private client account