Pathetic service from MTN champion

I received an e-mail from MTN regarding online deals. On 18 March I spoke to Thandeka Mdlovu who assisted me. She said I will receive my contract within 24 hours. After numerous calls and holding for hours I still don't have a contract. The amount I should have paid is R129. According to MTN I was linked to the wrong deal. The end of March and April R349 was deducted from my account. Till today, 28 May no one can assist me with my contract or to rectify my account. They just keep on escalating the problem to the next department. According to me this is *****. How can they change your debit order without you even receiving or accepting the contract?