I never got a form, nor did my dealer mention it. I did, however, print and fill it out and mailed it to Forest River on my own with a check. A few weeks later, I got a copy of the form signed by someone at Forest River. I picked up my Wildcat in early May, and got the form back in early June. So they definitely are still doing it, but it's probably on you to deal with the process (which is pretty straightforward).
2008 Chevy Silverado 3500HD Duramax
2015 Wildcat 282RKX