Telkom Mobile BAD service

I am honestly so fed up with Telkom Mobile at this point and regret taking up another contract with them. I requested a number change (My prepaid number to take over my contract number) and today I am sitting with 2 completely new numbers that I do not want. I am missing out on so many phone calls and messages on my old number and when I call Telkom Mobile they tell me that my number has been allocated to someone else that i have to go to Telkom with and get the matter resolved. How do they even suggest this as if they gave my number to a family memeber or friend of mine? I'm completely fumed!! Calling the call centre is pointless too! I must suffer for Telkoms incompetency, this is absoulute RUBISH.