Being billed but not a customer for 6+ months

Hi<br> <br> I disconnected my DSTV probably 4-6months ago, All of an sudden I see that my bank account was debited Begin August & begin September with full Premium HD - Extra view amount. This is unacceptable as, my Decoders are not even connected. I connected it now to see what happens, and I not even able to view, Have a E16-4 error. I want to know who gave you permission to reconnect the service and I want my money credited back to me this week still.