********** and Bad Service - Mondo

I got offered a data contract for 10gig of data for R199 on my cellphone number by Buy Mondo (Vodacom dealer). However when the contract was opened I received a new sim card with the data contract being on that number. I had a dispute with Mondo and they investigated and found out with the telephone recording that the data was supposed to be on my then current number and not on the new number. There was a decision that Mondo is going to cancel the contract with Vodacom. My Contract with Vodacom was supposed to be cancelled last year however from few months ago I started getting invoiced for non-payment of account. I have been calling this whole year about this query but there was no resolution for this matter. And I was advised by one of Mondo consultants (Roland) that they cancelled the contract with Vodacom but when I called Vodacom it wasn't. This issue is dragging on and has caused a problem with my credit record as I have been downgraded to High Risk and lost out on a Home Loan.