Pathetic Excuse of a "business"

MTN overcharged me on my signed contract for the past 2 years. I want a copy of my signed contract emailed to me. I want a refund on every amount that was Invoiced above my contract amount that I agreed and signed on. I also want a statement emailed to my email address. I also want my Sim card to be changed to a Prepaid Sim and to stop my contract as of immediate effect. I will NOT make the same mistake woth this useless excuse of a business again. Oh and I will not pay one more invoice until this is settled. Sipho from MTN Absa Square Nelspruit Mpumalanga knows all about this. MTN should close down.