WORST SERVICE IN MY LIFE

I have received a call from mondo (rewards call centre), spoke to shernice, i took up a deal of 20gig anytime and 20 gig nightsurfer for R269 a month. I have received the package only to find out that i am on a contract which is 5 gig anytime and 10gig nightsurfer for R99 a month and the best part is they are debiting my account for R151. I dont understand. I spoke to numerous people from mondo and no one is willing to assist, they dont want to provide me with the call recording because they know they messed up and providing excuses.

Telkom should stop advertising about their data deals but instead advertise that they dont worry about the customer. They should advertise "you request one plan and we will provide you with a totally different plan because all we want is your money" Where is my consumer rights???? freedom to choose the plan i want? . all i want right now is to cancel this terrible service. will anyone respond to this???