Before our Sirius Satelite radio subscription had expired (at the end of 2010), we called customer serice and negotiated a new package and rate for the forthcoming year. Their renewal rate was about $265 for another two years, but we negotiated a lower one-year package price of $100. I called and spoke with the billing department directly to make sure that they would bill the correct amount--just over $100 for one year of service--to the correct credit card. I received a confirmation while I was still on the phone for both the total charge and the credit card number. A few days later, Jan. 3, 2011, I checked my Sirius billing account, and discovered that not only had they gone ahead and renewed the account for an un-authorized 2-years, they had also billed the credit card over $300 -- $35 over the 2-year-plan quote we had received via email in mid-December, and over $200 more than the invoice I had approved and supposedly paid for only three days before. After another hour on the phone, I got a serivice person to fix the billing error and refund the difference between the quoted price and the actual bill, but I can't help feeling that I was still being scammed.
I have the sense that they try this scam on everyone--overcharging wildly on the off chance that many people will avoid the time hassel of a confrontation and just pay the inflated bill.