Vodacom and Mondo *****ing my money

I have an account with Vodacom *** that I cannot cancel even though Vodacom's unhelpful call line said they will. I was told that it will be cancelled to no avail. the package was sold to me by Mondo that said I could transfer the data to any Vodacom number. Upon receiving the Sim I could not and I cannot use it as intended.

I currently incur a bill for something that I did not want and that was sold to me under false pretences.

Thank you Vodacom and Mondo for *****ing my money.