Google (your brand) forest river (location west/east) service representative.
I recently did this and got numbers for the regional warranty and service department reps.
Once googled, you'll click on the FR link and select your brand and location and the names should pop up.
2017 Forest River Surveyor 247BHDS...
...Tugged by a 2016 F250 XLT FX4 SuperCrew, Shortbed 6.2L, 4wd, 3.73...
...Joined with a Husky Centerline TS 800-1200lbs WDH