STILL WAITING FOR MY REFUND!!!!!

Contract no: *** was upgraded by Elite INCORRECTLY (I neither requested nor authorised an upgrade) by them. Finally, after a nearly 6-month battle, they admitted their mistake and cancelled the contract. This was in Oct '15. Now I am trying to get the refund of R695 STILL OWING to me, out of them, for charges debited from Jun 15 to Oct 15 for a contract that was supposed to have been non-existent as of May 15. This amount - R695 - is NOT NEGOTIABLE, by the way, I want it ALL refunded NOT just the monthly fees. Here is a breakdown - R109 p/month x 5 months contract fees PLUS the R150 upgrade fee charged in Feb 15 for an UNAUTHORISED upgrade = TOTAL DUE R695. I have tried to contact the lady who I dealt with initially, numerous times with NO response from her. I am not making the effort here again, I was NOT in the wrong, YOU WERE, so fix your mess. DO NOT phone me, dont even bother, I am NOT INTERESTED in yet another empty apology, you contact me via email to get my banking details. JUST REFUND ME THE R695 THAT YOU OWE ME and I will go away. And, make it QUICK - I will NOT be as patient NOR accommodating this time around. I will go VIRAL on you if this takes too long.