Cell are involved in ***** changing packages without customer knowledge

I signed up a black Friday special telephonically only to have the sales person given me incorrect package details and had to redo the sales agreement in January and finally I thought my problems over now only to receive an incorrect package uploaded on to my phone and when I enquired I was told I went to a store and changed my package. This is indeed untrue as I never been to any stores and the lady can't even name the store as stated in the system and what surprised me as how who could changed my contract terms and conditions without my knowledge what did they use ..this is *****. Am so fed up with cell c service as they always mess my contract terms and conditions. And I have to pay for their mistakes. This is ridiculous. I need higher authority to contact me urgently as I am in a package that is useless to me. I also need to report this as *****.