No comms. Thought I went back to the best Cell network, what a disaster Vodacom!!!

A week ago I decided to port my number from cell c back to Vodacom. (Only had issues with cellc when travelling sometimes.) I bought a new iphone XR. Firstly after being ported initially to pre paid prior to taking out a contract I loaded airtime but in spite of a balance of R55 I could not make any calls. Visited two shops and had query escalated but nobody could sort it out at Vodacom. Eventually out of desperation I loaded more airtime and suddenly I could make calls. I though all was good. Then went to ahead to sign a sim only contract. When going over to the Smart topup data contract this weekend I was back to being blocked. I cannot make any calls out nor do I have any data. Visited two vodacom shops and they simply are clueless as to why I cannot make any calls. This is a joke. I am running my own business and if this is not sorted out in 24hrs I want my contract cancelled so I can just go back to Cell C.