Not only does Sirius/XM have the worst customer service departments ever, but have you read the TOS? If you don't call listener care w/in 3 business days of your trial period, they have the right to renew you to the same period after your free trial. They will
bill you if no card is on file.
Sirius XM Listener Care # 1 866 635-2349
http://www.siriusxm.com/pdf/siriusxm...eement_eng.pdf