Oh Wow first problem

Well, we just experienced our first major problem with the trailer. We left it at Coushatte to wash and wax it and clean the interior real good. The last time out we noticed an area under the slide out that had been wet. The residue was rusty colored and ran from under the slide out in front of the bar and against the curbside. Saturday when we went out and Amber found an area in front of the Dinette seat that had been wet, and bubbled the floor in a small area by it. It did not get under the seat area just in front by the street side wall. Well don't you know that since Coachman sold out to Forrest River they have no service department and only Robbie the Robot answering the phones. I emailed the service department of Forrest River, but haven't heard from them yet. The unit was just a year old the end of June, and had been giving it good reviews, no major problems till this. I'm off Tuesday and Wednesday and hope to fing the problem and get it fixed. The quality of RV's still appear to be there, any brand any type, hopefully the manufactures can get their S=== togeather and regain customer confidence, it seems customer service has went by the wayside.