Hi Rod,
Yes, the verbiage in Snowcovered is confusing. It actually should say "Get xx% discount on Product v.2 if you purchased Product v.1" We've given the feedback to Snowcovered and it's just a matter of getting to this item in their task list.
Meanwhile, there is no discount applicable when upgrading from v2.0 to the Collection 4.0 (there is a 50% discount from v3.0 based on our
Upgrade Policy).
However, I can verify this for you if you can give me your nvoice ID from your last collection purchase through the Contact Us Support Form. Please include a URL to this thread for reference. Thanks!
Candace