Trouble Porting

On the 5 Sept, I wanted to port my number from an FNB to Vodacom due to poor poor connectivity on FNB network. I went into the Chatz store to initiate the process, for which everything happened according to schedule. SMS was received with confirmation SMS that the port was approved. However, no port has happened as there was a technical issue with my account having previously been on contract with Vodacom. After numerous emails and phone calls between the Vodacom store agent and even myself to the call centre and promises that all would be sorted out, and being told that it's an easy process, I still have had no resolution to my number being ported. No one has come back to me and no one can give me an answer as to why I cant port my number to Vodacom. Every time I'm told I must go into a Vodacom store, and when I do that, they cant help me. I have been in and out the Vodacom store 6 times with this and have even tried other stores. I'm really frustrated and would like a resolution to this soonest.