Validating OEM software

Last year, I purchased Dell 3000 with all it's periferal software. It came with an OEM 1 year usable/renewable subscription to "Norton, Symantec anti-virus protection". After 1 year, I didn't renew but purchased and loaded "Norton Symantec System Works premier 2005", from; Nothingbutsoftware.com To take advantage of the rebate I must print proof of the OEM install. I've already deleted the old software using the control panel because the "pop up renewal add" continued to show itself even after I loaded the new software. All Dells support activites have failed. They tell me I didn't buy security software and can't help me. Finally telling me I can go to the PAY FOR help desk. I'm beginning to wonder if Dell and a $30.00 Norton rebate was worth it. Sugesstions please. Tom