Angry and disappointed loyal client

I am very angry and disappointed in my recent experience with cell C. I have 3 contracts with them and 1 was due for an upgrade, I did my upgrade over the phone with the agent and the conversation went well. Unfortunately a mistake happened when the application was being processed and as a results the data I had on my sim was taken (it was about 15 gig normal data and 20 gigs night shift) . I called in the following day to try and resolve the issue and the lady who was assisting me did her best by consulting everyone she needed to so that she can reverse the application and redo it. All of that was done successfully but the team that must reloaded my data haven't done so. I have already paid for that data and I need it. As I check on the emails Kgato Kanyane is the person who was suppose to be assisting with this and he/she's failing dismally and I don't know what's the holdup. It's the second week now waiting for this to be sorted out and that data is due to expire on the 15 of March which is getting closer and closer. I'm seriously not happy since I'm also experiencing financial loss because of this as im using this data for my business and I'm gna take it further