MTN incorrect deals

I am really disappointed with MY MTN Home Mega deal as Last year June 2021 I signed up to a data contract Which is R199 sim only per month and it was supposed to be for 50GB anytime and 50GB night-time with 20GB Promotional. I have been noticing that they actually signed me up for 30GB anytime and 50GB night-time and 20GB Promotional which is not what is signed up for meaning they are me for more that they are providing.