Pathetic Service. ******* activities from Cell C

In a nutshell. For the past 2 years I have had a month to month contract- 50 Gig LTE data line. Recently however I noticed I was being charged more than the usual. I contacted Cell C and they informed me that in March 2020 my contract was upgraded to a 24 month contract. I informed the consultant that this was done *******ly and I have not requested for an upgrade and nor has anyone contacted me to upgrade. A call was logged numerous times and today 18/11/2020 was the last call to Cell C customer care who informed me that they have NO RECORD of how I have been upgraded. There are no calls, no documents to show how this upgrade was performed. When I questioned the consultant, she says "I don't know". Now if this matter is not resolved within 24 hours, I will take it up much furthur by getting my Lawyer involved. I require a refund for all the monies I have already paid since March 2020 and I need my 50 Gig LTE line to be reinstated as it has been for the past 2 years on a Month to Month package. My contact number is ***.