Wrong data and airtime

I have a problem with Data and airtime since Jan 2019. After several emails and visits to Cradlestone mall.. According to the contract I am supposed to get 55gb and 1300 minutes. I only het 25gb and 500 minutes. I still have the book where the package was advertised.

This is *****ing from me and wasting my time trying to sort out this problem with no effort from MTN customer service. This is my 2nd cimplain on Hello Peter. 1st time I got a redicilous reply that they are working on the problem. I am busy getting legal advice. I will appreciate it if a senior person can contact me. ***