Your last pic in post 3 says it was manufactured in India. Not sure you have much recourse. Caveat Emptor.
That said, I would suggest two things for next time. First, don't take this experience as indicative of all Airfix products. Their recent releases over the last 5 years or so have been very good and seem to be getting better. Second, do your research. Before dropping money on a kit, use your Googler to find reviews for the kit that you are considering. Unfortunately, reboxing of old kits from the same manufacturer or even by other manufacturers is quite common and, in my opinion, deceiving as these facts are rarely if ever advertised on the box. Even Tamiya is guilty of this, reflogging old Italeri kits under a Tamiya label and jacking the price up because, well, they are Tamiya after all.