Vodacom has no honour

I had upgraded my vodacom contract in August 2021. Airtime plus 20GB anytime data. I have only received the data once, but confirmed with all the people have spoken to at vodacom, that they can see it was a 24 month deal. I was supposed to have been contacted within 72 hours with feedback of my query and i am still waiting . Almost a week have passed and nothing. They also want to charge me R900.00 for cancellation of the contract when they are the once who have not honoured the contract.