Appaulling service

Cancelled my account on 28th of august giving one months notice as required. My account should have been closed on the 28th september. They tell me now it is closed and i have been waiting 22 days for them to return my deposit of R700 which they took on opening. My account is paid in full and they now say i have to put in a dispute to get my money back, i dont need to dispute it , you have my money just give it back. No one can help you with it they can only escalate it , you cant actually deal with anyone that can solve your problem .