feeling very discouraged

I am currently feeling very discouraged regarding how FNB is handling my request to down grade my account. I am currently I under debt review. My account had an Overdraft on it on which on the 8th of April I was informed that my overdraft has been separated from my current account and they have opened a new separate for the Overdraft. On that same letter they told me to close the account to avoid accumulating interest on bank charges. On that note I decided to go to the bank to downgrade the account so I can afford the bank charges. I have been to the bank twice…1st of June and 24th July to downgrade… both times the request has been sent to the relevant department for the downgrade but nothing as yet. I cant afford the R300.00 I keep on depositing on the account. I am barely making it as it is. I am on only 75% salary. Can someone please help.