Dstv refund

I would like to lodge a complaint, on the 29th of July I wanted to pay R1000.00 for my subscription but by error I type in R10000.00 the very same I called them and they promised to refund me, I called again on the 4th August and I was told that for a refund I should send them copy of my ID, proof of payment and 3 months bank statement. The very same day I emailed all the documents and I was told that I will get my refund within 7 days. Up until today the 17th August I am still waiting. I know it was my mistake but I really need that refund, I know for someone R10000.00 is nothing but for it is a lot of money. Frustrated