Incorrect contract

A month ago a consultant from Vodacom contacted me as one of my contracts has been ongoing for over 36 month, way past the date of upgrade. I wanted to cancel the contract as i was paying in excess of R300p/m for a contract i hardly used. The consultant however dissuaded me in canceling and offered me a great deal, or so I thought. This is for my *** number - I was supposed to pay R55p/m for (sim only) and receive 200 minutes per month. Great was my surprise when this month, August 2020 there were no 200 minutes only 250mb data and done day time and night owl data of 500mb for 24 months. So before a representative from Vodacom contacts me he/she must listen to the recording that transpired between me and the consultant as these calls are recorded. The number they can reach me on is ***. It is appalling that such an error can be made.

Thank you.