Poor service from DSTv/Multichoice

On the 17th of April my husband and I left for a 10-day holiday. As I've done in the past, I phoned DSTv that morning to request that our service be temporarily suspended for that time, as I cannot see why we should pay for something we would not be using. The person taking the call informed me that I could only make that arrangement on the date that our account is due. What on earth? Does that mean that in future ALL DSTv clients are held at ransom by DSTv/Multichoice to arrange our holidays to suit THEM? I lost my temper after trying multiple times to explain what I wanted and INSISTED that my service be suspended from that day. On our return we found that it had not been done. When our next payment was due, my husband subtracted the amount for 10 days, namely R260 and paid over the balance. We received a number of SMS's to the effect that our service would be permanently suspended if we did not pay the outstanding R260 immediately. I wrote on both DSTv AND Multichoices webpages complaining about the service NOT received and explaining why we deducted 10 days' fee. more than once but NOBODY from either of these companies took the trouble to reply or respond to suggestions made. Our service has since been suspended as we are refusing to pay for something not used and they refuse to pay any attention to customer complaints or queries.