I had something very similar happen with a completely different auto part and vendor and this was over $400. When I gave them my credit card it was not made clear that it would be charged before the part would be manufactured and shipped. The vendor kept making promises that it was in the works and development was almost finished but nothing ever materialized. Of course there was always an excuse why it wasn't finished. I know they had in excess of 50 orders...you can do the math on how much money they scammed.

It was longer than 2 years, but a very helpful person at my CC company was able to reverse the charges by taking my last contact/promise of delivery from the vendor as the order date. You might try this route and see if it helps. Hopefully you have written correspondence within the last 2 years.