First, is there a Salem rep on the forum? Time to get a contact going.
I think that the issue is this is a new unit and the floor is sagging.
Dealer should and will repair it, but remember to try to work with them. Asking for refunds right out of the box can get them a little testy and less likely to help in a courteous manner. The dealer won't want to pay for a repair, so they will look to two sources - the manufacturer or you. Make sure to refer to the manufacturer as a separate entity, not "you guys".
I'd bet the new guy in the plant made an error (likely, the industry has been growing lately) so best plan is to just get the dealer to do the fix. If they won't do it to your satisfaction then get a lawyer (barrister?).
Til' it is all sorted out, no one jumping on the couch!
2011 PrimeTime Tracer 2600rls
2001 GMC Yukon XL 2500, 6.0L 4.10:1 axle ratio
Nights camping 2014 - 17
2013 - 15