I was just sent over the updated form from Forest River, so I went ahead and uploaded it to forums documents library.
If you don't know where that is, it can be found here: 2 Year Warranty Form
This form appears to have been updated on Nov 17th 2015. So it will have updated prices for the cost. And it does say 90 days to mail in your document and money.
There was an older version on there uploaded by another member, but this one appears to have updated pricing for newer models and lines.