I want NO DEALINGS WITH MTN!!!!

I've been a Vodacom client since the inception of cell phones in SA.. I've recently had issues with Vodacom and realised being a loyal customer doesn't always make a happy customer so after hearing great reviews from family members I app**** for a data contract with MTN on 24 Oct .the last 3 weeks have been a nightmare.. I've made umpteen calls, complaints. Several visits to the store in Mall of Afrika yielded NO resolution. After 3 days of hell I requested that the contract be cancelled, to be told it cannot be done.. I rceived the sim card on the 24 Oct and by the evening 37 gs of data had been used up by my 6 year old grandson.. IMPOSSIBLE.!!. I was told to lig a query. To date the query has not been resolved!!. On Saturday, 12th Oct I woke up to an sms that was recd 00h00 advising that 40 gs of data had been allocated to my acc. At 6am I queried my balance on 136 and was advised that I had 32.3 gs of data available. So almost 8gs of data had been used in my sleep!!!. Again I called and visited the store and was advised that they cannot answer technical quesries and I had to log YET NOTHER QUERY .. a query added to a query

I hereby DEMAND THAT THE CONTRACT BE CANCELLED AS I HAVE NOT USED A SINGLE MB OF MTN DATA AND REFUSE TO HAVE ANY FURTHER DEALINGS WITH THEM