Vodacom, the worst network provider by far overnight

I have been waiting for vodacom to convert my prepaid number to contract for 3 weeks now. They have made me do 3 sim swaps and still waiting. No one borders to give me updates in vodacom Centurion mall. I have been a client of vodacom for more than 15 years and the number in question is more than 10 years old. The consultant helping me says there is nothing further he can do as they don't know what the problem is. This after I called him more than 10 times in one day. Centurion vodacom has resorted to even not returning my calls anymore. Vodacom you have become the worst network provider by far in matter of 3 weeks