CELL C PAVILLION PATHETIC EMPLOYEES WITH NO CUSTOMER CARE

I took a contract out at the pavillion store and I gave them all my supporting documents including my bank statements. I had a contract previously with cell c so the lady that assisted me just used the old information she had on the system,she didnt bother to check the bank details or my address yet she took those documents. To top it of she tells me that I will not be charged anything at the end of April and then I see a notification from my bank that cell c tried debited my account but there was no funds in that account because I am now using a different account.I had to pay penalties to the bank because the payment bounced. I then went to the cell c store and spoke to the store manager. He just gave me a half hearted apology and said he would get the lady to call me Monday and ensure my bank details are changed so the debit wont bounce again. This makes me look bad like I cant pay but they are ***********. It is now Thursday and the lady has not called me. I called the store to speak to the manager yesterday,he was not available so I left a message.He has not called me either. PATHETIC SERVICE FROM THE MANAGER AND THE STAFF!!! they do not know how to do their jobs properly