Unfortunately from what read here and other forums this practice is not unusual nor a violation of thier dealership agreement with Jayco. The RV industry is a long way from car dealerships, with regard to how service works. Jayco will approve service from non-jayco dealerships (or RV Service only shops) if necessary, I'd try to go that route if where you purchased from is prohibitively far.
I potentially could have the same problem. I tried to buy at my most local dealership (30 miles away) but they thought thier trailers were made with gold and diamond accents, so I purchased mine for 22% less from a dealership 120 miles away.
2007 Chevy Duramax LMM/Allison
2012 Jay Flight 29QBH
2012 Jay Flight 26BH (Sold)