float crushed from altitude change?

[freak]

I ordered a new float from Berts in Colorado. When I received it here in Ohio the top of it was smashed in. i called Bert's who claimed that it was the altitude change that did it. (You would have to assume it was made at a high altitude for this to even be feasible.). They were nice about it and are send a new float but now I am nervous. Could any float made at a high altitude fail like this at any time?