Not completing my contract and query

I was looking to change service providers to get better signal and reliable service. A few days before Christmas I decided to sign up with Vodacom and immediately completed the form and so on. On the 26 December 2019 I went to the store to rectify some details and the sales person (Reggie) told me it was approved. I was surprised and couldn't believe the fast and friendly service. They logged the call to cancel with the other service provider and for me to keep my number. He told me it would take 24 to 48 hours for this to be done. Days later and many calls, and I still had one number and 2 service providers. I went back and they were surprised after I told them what was happening. He logged and escalated a queries on the same day (30 December 2019) and again said 24 to 48 hours. But I got angry as this has been days now and again I have to wait. Nevertheless I waited and it's now the 3 January 2020 and I still have the same problems. Reggie is now on leave and I haven't received any calls from the relevant departments. Please all I need is for the process to be done and completed as I am in limbo now and think it's quite risky. Your urgent response would be appreciated. I also haven't received the minutes and data for January yet.