*****ing my money after asked to cancel contracts

I went to Nicolway shopping centre on the 11 Sept 2015 to cancel 2 of my contracts that would expire end of sept.I asked the lady there for proof that it was cancelled and she assured me that she would mail me the proof. On the 25th Sept i got my first email to say that mtn got my termination requests. I then mailed them back to say that those contracts needed to be cancelled ASAP. Today i had to pay those 2 contracts AGAIN!!! Phoned mtn customer care and they said that the 2 accounts are still active. What the hell?????WHY WAS THESE CONTRACTS NOT CANCELLED??? Its not like i phoned in to cancel them.I went to a MTN shop. I want this resolved NOW!!! And i want my money that mtn stole refunded NOW!!!!! This is why im so glad these contracts expired so i can go over to another service provider that actually gives you the service you pay for. Cant wait for last contract to be terminated. Been a loyal customer for +- 17 years and this is still the service one gets???? Nothing changed.Not the first time that mtn *****s up and then try and just wait for problem to fix itself. Ive got emails with proof when i asked to cancel contracts