I think you pay for the 5 year guarantee more than the product on your car. The salesman was pushing this on me at the weekend and all I could think was the swirls in the paint need sorting before you go anywhere near it
Kick up a fuss, my bosses R8 had a paint fault they gave him a courtesy TT-RS while it went to Germany after 6 months they gave him a new car and a massive refund for his inconvenience