I got the same call, it's like a time share but for travel. I guess if you can wait out the 90 minutes, you at least get one of the gifts. See this website: http://www.yourconfirmationletter.com/washdc.html
They just called me and the four prizes yada yada and enquired if we make combined over 50k so that if we win the truck it wont be a burden to us, I said our combined income is less than 50k but if I win I will sell the truck hehehehe
there was no response.
anyways, they took the names and made me write a conf number and i am tossing it in the trash right now..
This number called my cell at 9:00 at night. Heavy Indian accent, telling me he is calling from Toshiba and wanted to confirm that this is my number, but he never used my name. He told me that I filled out an entry form at the mall and that I had won a prize. I cut him off telling him that I never filled out an entry with Toshiba and that I wasn't interested. I immediately recognized that he was phishing for personal information and is a conartist.
I blocked my number and called the number back, and it's a SmartJack with a full mailbox that won't accept messages. Typical. Go get a real job buddy!