Poor service causing bad credit history

I have 5 accounts with Cell C. <br> I paid all of them in the beginning of October 2015. This payment does not reflect on my new invoices received and it states that I am in arrears. I have logged three calls in the passed month trying to resolve the allocation of payment. I received a notification last week stating that the allocation was done and the case closed. Today I went to the Cell C shop in the Norwood and the statements still show in arrears and no payment reflecting for last month. <br> Last month I paid R5767 and for this month the amount is more than R10 000. <br> This reflects on my history as having bad debt and a poor credit record and the account is just more and more expensive every month. They blocked two of the accounts stating payments were not made and made two debit orders on the 16th of October 2016 for these accounts.<br> I have now paid another R5400. <br> <br> Not too sure where to go from here.<br> <br>