I hate to say it guy but if your car that is in the first picture is after they have done some work on it I would be suspicious as well. I specialize in first class body reconstruction on muscle cars, no collision work period! First of all I don't use any bondo fillers, especially over bare steel. Just one of my pet peeves. Second, is that mud just over the rust holes? If is is you have wasted your cash, or I should say they have. That will be a guaranteed redo. Rust repair is the hardest thing to gauge for price simply because it is always far worse than you suspect. Here is a few pics of the 70 Hemi Cuda body that I restored for a customer and you can see exactly what I am talking about. The before pics are someones attempt at bondo repair and after I cut the lower off this is what I found. Solid rust and perforations. So I fabbed up a new lower quarter panel and was able to save the rest of the original panel, and you would never know that it was replaced!