MTN is a ****

I signed up for an MTN Data sim over the phone and ai was told I'll be getting 80Gig of data, 60 anytime and 20 night data for R299. I received my sim card and activated it, I got a summary of my contract and to my surprise its 20Gig for R299. I haven't used it and I won't use it. MTN is a **** and they won't get a cent from me. I've been calling their pathetic customer service to cancel this thing but no one is willing to assist me. Guys stay away from MTN and and their lying sales department. I will tell this on every platform and to anyone who's willing to listen.