I ordered XM Radio 18 months ago. I recently noticed that XM radio was also charging me for XM online. I never ordered this service and did not authorize them to charge me for it. I paid for the radio quarterly, but they were charging monthly for the XM Online. I thought the monthly charge was for the radio until I saw both charges together on my credit card bill. They acknowledged their mistake, and paid me for 6 months of the overcharge, but will not pay me for the other 12 months. Beware! I wonder how many other people are giving XM Radio extra money by being charged for another service not ordered.