Directv billing ppv dispute

Directv has billed me for PPV alledged viewing that took place in 2002,2003 and 2004. Charges have appeared on my August 6, 2009 bill! I usually pay average $133 monthly. This month $316.47. I have called them today 8/21/09 spoke to Daryl, then supervisor Veronica. They said they would make no adjustments on the bill and cannot tell me where in their service agreement past or present they can legally bill me for these very past charges.They said the charges were correct, I disputed charges. We went back and forth. I have been their customer for 10 years.I have always paid my bills. I have upgraded service and equipment and received program cards for the receivers through the years with receivers being changed out or replaced. Nothing like this has happened to us before. In May of this year 2009 lightening knocked out all our receivers and tv's. We pay for 4 and only one is connected to a phone line. Directv came out and replaced equipment since we have a monthly protection plan. They said they scanned our cards and found these charges. What can I do to rememdy this? All they would do is give me the corporate address in Greenwood Village, Co. They would not give me a phone number. Veronica said they are not regulated and thus I would not be able to complain to the FCC. Do I pay entire bill or just pay regular average bill amount? HELP!