I had their service and at the end of the promotion rate. They told us they would notify us if we wanted to extend their service or not. No one had the gall to notify us, but they did keep charging my credit card at a ridiculous rate. Once I found out they was doing that I called them and asked why no one notified us of this. Their explanation was we were to call them when it was over. That is nice, but we didn't know it was over and thank you for not let us know it was over. Good business practice SirusXM for you, but stick it to the customer. I would suggest if you are going to give them your credit card for billing change the card after you have given it to them. Otherwise, they will keep charging your credit card.
