Bad Attitude and shocking service

My iPad contract expired end of April & I received a bill for over R2'000 iso R379pm -I called MTN Stoneridge a month ago to log a billing query, 1 of the guys called back & left a voice mail with the ref. no. Unfortunately the voice mail expired & when I called back they were unable to assist without the ref no. That same day (a month ago) I switched off the cellular data on my iPad.<br> Today I received a new bill in the post For over R1'000.00!!!??? - I called Stoneridge MTN & told Sanele that I would like to log another billing query & cancel my iPad contract immediately. He told me to come in-store to cancel the contract as I need to complete forms -I asked him 2 email me the forms, at 1st he said he would - then told me that I would need to be in-store while filling in the forms-I told him I'd complete the emailed forms & then bring them in. <br> I then asked if I could log a new billing query-2 which he responded that they don't log billing queries over the phone & that I should come in-store to do that!! I told him that, that was untrue as I had logged a query telephonically a month ago -His response \For me