Took delivery Jayco Alante 2017-found crack in the roof next day after we cleaned it. Intentionally hand washed and inspected the unit personally for these very reasons. We take it back to show the service dept. tomorrow morning. We want our money back or a new unit. Is this possible? Has anyone experienced this? Could have probable/possible water damage, etc. This was our first motorhome purchase. Thanks for your help in advance.