Incorrect billing

Regarding Cell C contract , case number -***<br> <br> I am billed on the 25th of every month for my cell c accounts and I have noticed that when I was billed this month, Cell C has incorrectly charged me an extra R479.82 . I had called on Sunday the 27/09/2015 and laid a complaint and they had promised to refund my money the next day which would of been the 28/09/2015, as they accidentally debited me incorrectly which they had admitted on the phone . Today is the 30/09/2015 and nothing has been done . I have called the call centre everyday and have spoken to many people about this matter and nobody can actually help me and this matter has remained unresolved , I am highly frustrated for the below reasons:<br> 1)If I did not check my account, I would not have noticed Cell C *****ing my money and this could of occurred every single month <br> 2)having this R479.82 taken out of my account could of resulted in a negative balance , which effects my bank status and creditability <br> 3)I've taken a contract with Cell C , trusting they are taking out the correct amounts <br> <br> please can somebody help me on this matter as they have ****** my money and I need it back .<br> <br> Elishia Govender <br> <br> <br>