And that advertisement is accurate. There is built-in GPS in the 8830.
It's used for 911 services. Nowhere in the advertisement does Verizon indicate that the GPS can be used for any other purpose, including navigation assistance.

Additionally, the ad indicates "Coming soon", which means that the ad ran before the product was introduced to market. It's very common for released products to have different featuresets than originally planned.

You can keep trying, but you're not likely to find any "proof" that Verizon misled or defrauded the public.
Take your class-action crap somewhere else. Nothing to see here.