Cancelled a subcription to xm radio for a reciever I was not using. I had about 9 months time on my prepay when i called to cancell . They "gave " me three months "free" and told me i could let a friend use it . this week I got a bill for quarterly service, for an account I closed last year, for $40. When I told them I cabcelled they said I asked for the extension, and would not credit the amount. read full review »