Keeps on billing me after contract was cancelled

I had 2 cellphone contracts with cell c. I cancelled my first contract on 6 Jul. 2015 with immediate affect and paid my settlement amount of R449.86.<br> The next month on 6 Aug. 2015 I cancelled my other contract with immediate affect and paid the settlement amount of R300.00.<br> On 31 Aug. 2015 an amount of R364.70 was deducted from my bank account, I called the call center and after holding on for ages, they said that it was service charges (This can't be true, because I had more than enough data, sms's and minutes), but I accepted their excuse for this deduction and asked if there would be any more deductions and they said NO.<br> On 30 Sept. 2015 another amount of R227.89 was deducted from my bank account. I have been trying to get hold of someone at cell C to refund me, but I just keep holding on and on.<br> I have read that there is a lot of complaints like this on hello peter and would like to know how cell c can still get away with this.<br> I want to join the other complainers and ask cell c to please \stop *** my money"<br> AND I DEMAND A REFUND!!!!!"""