Number deactivated without my consent

Dealing with cellc is just a nightmare no one knows what they r doing, I cancelled my contract last year November and the idiot who processed the cancellation never advised me on whether will I love to continue using the no. A month later I find out the no. Has been deactivated, seriously I have been using that no. For +5 year it's in my CV I have application in process n trying to get the no. Back has been an uphill battle, 1st I called cellc n the no. Was reserved and was told to do a SIM swop, not even a cellc store was able to help with the SIM swop, been calling cellc for the past 3weeks to no help every after call I am told the query has been escalated but when I call again 3 days later no one knows about the query, Monday the 30 I finally spoke to a lady by the name tumisho who is supposedly be either a team leader or supervisor who intern took all my info including the blank serial SIM card no. And said she will email sipho who deals with these kinds of queries and sipho will call me back on latest be Thursday the 2nd, no call came through I called cellc again Friday the 3rd now again no trace of the email no one knows tumisho from contracts department, I feel like these call centre agent just promise me heaven and give me hell, all I need is my no. Back, I can't deal with SIM swop department cause all they say is the no. Is not in their system so they can't help

This has been the worse call centre experience I have ever experienced, some urgent even just drop the phone in Ur ears if u try to explain what u need

I am so so so gatvol with this Piller to post actions I need somebody who will handle my query from start to finish, this thing of dealing with multiple persons is a big irritant