Since this thread got resurrected, be cool to hear how/if it was resolved.
Do frames or structural components generally have a longer warranty period than the typical outta sight RV warranty?
If not, I suspect the dealer mfg said, sorry, would you like a quote to repair it?
I don't buy much expensive stuff that has a warranty left, but I'd think the OP would know what the warranty is considering I believe they bought it new.
If out of warranty, and you get stuffed by the mfg, insurance and bad press are your best options.