Vodacom Useless and NO Service Level

I have been struggling for years to get proper service form Vodacom as there service level keep on declining. At this point it seems that it is non existing. I upgraded two of my business contract on the 29th of Jan an since the numbers are no longer working an Vodacom is doing nothing to fix it even though I have reported it more than once to different divisions. I am now paying for a data contract and a voice contract with new devices that is not working at all. When calling the new phone it just go to voice mail and you can not call out with it. The new router sate the it is no longer registered on the Vodacom network.