Extend Warranty Questions

[H3 Hummer 64]

I just bought a GMPP Major Guard warranty, 4 years 40,000 miles with zero deductible for $1,190. My H3 is a 2006 but I only have about 23,500 miles on it now. If you bought the warranty before the vehicle hits 24,000 miles it falls into a much cheaper bracket. Also since I bought it from a Pontiac Dealer I don't think the guy knew about the $330 or whatever surcharge he was suppose to tack on for Hummers.