Diecast, you are being very reasonable (almost too nice) with these guys. First, to let a car sit on a flat tire like that is just silly. If I were you, I'd def ask for an extended warranty. I think that'd be a pretty fair compensation.
Current: E92 M3 Sparkling Graphite/Bamboo Beige/6MT. E36 M3 Techno Violet/Dove/5MT. E85 Z4MR Alpine White/Imola Red/6MT