Contracts suspended without warning. 0 communication. Pathetic.

So MTN suspended my accounts with out a single warning, no sms, email or phone call. When I emailed them (because I couldn't phone) I get told that my debit bounced two weeks earlier. The lack of communication from a communication company is pretty pathetic. I have now sent a few more emails requesting that they offer a payment arrangement or have someone call me. All of my emails are just ignored. However I did receive one more call, from marketing. How can you help MTN? Perhaps Vodacom can assist?