As with any personal purchase, CV is not earned when you buy something from Rewardical vendors. Instead, you receive Rewardical Tokens (RTs) for your purchases, which you can then exchange for a variety of goodies, including team-building PSAs, TCredits, Bitcoin, Silver Bullion, and more!
You can also collect 1 Rewardical for every 10 a Rewardical.com vendor that you referred dishes out to their customers.