How *********** can you get?

I had an 3 numbers with Autopage. Last year I was billed over R17 000 for them not being able to distinguish between my MTN accounts and My vodacom accounts.In December I have put to them in writing that I will not be continuing my Contract and that I will port my number to a new Service provider. This was to happen in the beginning of December. I am still receiving bills for this number. I have now decided not to pay the bills for my Vodacom account and will only pay for My MTN service. Now they have decided to suspend my service on my MTN number. This service was paid for. I am extremely frustrated as my MTN number is used for all my data requirements and I am using a normal phone and paying a exorbitant amount of money for a service they should be rendering. I now truly believe that they are useless.