Cut off without notice

My Husband and I were cut off completely without any notice at all. Our payment for our contracts were on debit order and never went through due to the fact that it was not the amount agreed upon, instead it was R800 overcharged. None the less, we never got notified that no payment was received from the bank or Telkom. Nearing the end of Jan our phones stopped working to the point where we can not be reached at ALL! My husband works in construction so having his phone with him was crucial for clients and contractors. When we phoned to sort out the problem the service was even more useless and we had to pay the extra R800 without knowing what that was for exactly because they could not tell us. But they needed full payment in order to activate so we paid in full on the 21st. He phoned the 22nd and they said no payment was reflecting and that no proof of payment was accepted. We phoned again today as it is getting to a point where is job is in jeopardy and yet no payment reflected. We did our part and more!!! We paid in full for something they could not explain to us! He needs his phone activated ASAP!!!! We paid and yet we have no service! No one at Telkom knows anything!