Shocking Shocking Service once again

I have over 12 emails, between Customer Care and myself. I now have six reference numbers and a Hellopeter, yet 1 week later and MTN has still not bothered to come back to any of my e-mails? They obviously don't take Customer Service seriously and don't give them your bank details, as they just deduct what they not even entitled to, I am overseas so battling to sort this out. They have more than double debited my account and not a small amount either for no reason? It seems as if the Mobile Companies are a law unto themselves and just do not care about the Customer! Has service deteriorated so badly that they cannot even respond to a query?