DATA BUNDLE PROBLEMS

Hi. I have a recurring 3GB data bundle on my contract. My bundle was changed to 2GB without me asking for this to be done. When I noticed this one the 1st of October I called and they advised it's fixed. will only take effect in November. I called on the 31st of October to see if everything was in place and they I assured me that I would be back on 3GB on the 1st of Nov. On the 1st ot only did was it not changed to 3GB but I had received no data at all. I called and they said it would now take 24 hours to be sorted, nothing still. I called again and they assured me it would be removed by 16:00. I AM Still WAITING. strangely they have already added the 3GB data chargers to my bill for next month. I need this sorted ASAP as it's not the first time this has happened and previously it took them 3 months to fix. Also it's costing quite a bit having to call In and explain the situation to a different person each time ad they are not toll free. I'm also now being billed out of bundle rates at R2 a MB while I wait for them to sort out a problem they created. I want to be credited for those charges as well as getting my 3GB data I'm being billed for. PLEASE CSLL ME TO RESOLVE ASAP