I signed up for a 1 year service on my wifes radio. After the one year xm sent a bill. I no longer wanted the service, so I did not pay the bill.. 3 months later I recieved a call from a collection agency saying xm had turned me in for collection.I told them we had not used the service in month's and they said oh well you owe it. I called xm and they told me that I had not notified them that I did not want it therefore I owed the bill. I told them any other service such as electric cable water& sewer would cut you off if you did not pay, not just keep billing you. I paid up the 3 months to get my credit breport clean. Then a month later I get another bill from xm for the same amount. They wanted me to pay again and I told them NO, the next time you hear from me it will be my attorney calling. I have heard no more from them. But beware and stay away from XM radio...........