RVshare mention bank denied loan - any recourse

Call back and just tell them the truth - you considered it but decided against it (if you, indeed, did decide against). Be nice, but disappointed that this information got inaccurately passed on.

You'd probably be best going over in person to have this discussion.

JMHO - always and honestly tell the truth!

None. You need a commercial policy to rent your RV. Renting out an RV is considered to be a business.

Ask a Florida attorney but your damages seem small and your proof issues seem large.