Customer Service? After chasing with no response?

On my statement it showed that the previous month was not paid - even though my account is debited and i can see the debit having gone off from my account.<br> <br> I have tried resolving this by emailing the customer service department (as per instructions on statement). Received an initial reply but nothing since. I have chased 4 times now still with no response.<br> <br> This is not customer service and i don't see why i have to chase for something that is not my fault but rather an issue with MTN billing. I don't want this ending in a double debit on the 1st of November.<br> <br> Hopefully whoever this goes to can get this sorted as staff don't seem to be all that diligent dealing with customer issues.