DrightSight 2019 Standard to Professional Upgrade

Let's say I purchase a license for DrightSight 2019 Standard and three months from now my needs change and I need to upgrade to the Professional license. Anyone have any idea if I would get a credit of some type for the money I paid for my Standard license three months ago, or do I just have to eat that loss? I can't seem to find anything on the subject anywhere on their website and it doesn't look like you can contact them directly unless you have already purchased a license. Any ideas? Thanks!