Speechless

In December 2015 I change my Dstv package to the dpp. Once I received my new decoder I cancelled the old subscription and activated the new one. As I wAs told to do. But on my debit date, over R2000 wAs taken from my account. I immediately called multichoice who told me that there is. Nothing they can do Nd that I must call back in a weeks time. Very unhappy about this because I was already over R1000 short I had to buy airtime to make these calls. Anyways, when I called back they assured me that I would be refunded... up until today it has not been sorted. I have called in 4 times already which costs a lot of money, never mind the unpaid debits incurred because of multichoice. I'm so fed up. I don't know what to do.