V5 trade-in program

It seems like we have to fill a document before getting V5 bundle (50% of its price).
Any links of this document?
And can we complete this program during VEX Worlds competition at VEX store?

The discount is based on team registration in the 2018-19 season.

The site indicates a May 1 start for the rebate program. I would assume details will become available then.