********** upgrade/billing/ prepaid migration

My contract with MTN expired in the 26 April 2015! prior to the expiry date I called to request termination of the contract! that was not done subsequenly other requests followed 3 of them with no feedback!<br> <br> Nearing the contract end a ********** upgrade was done on my account and I reported it to MTN and how it was handled was very poor! I was charged R406 instead if the R259 twice! even when I was told that they will correct the upgrade issue. <br> <br> I also called in for migration to prepaid and men to stop billing me but that was not done either! <br> <br> I want MTN to solve the matter, <br> migrate my account to prepaid,<br> credit my account with R60 airtime estimated value of bank charges, free internet data 1G for all the trouble incurred running after MTN.<br> <br> reference numbers:<br> *** for billing, migration, credit to ny bank account,<br> *** for refund <br> *** for contract termination<br> <br> <br> <br> <br> <br> <br> <br>