It might help your loyalty program signups if you can list what vendors you have signed up, examples of merchandise, and what types of giftcards.

I also suggest providing more info on the rewards here in the forum, rather than relying on the pdf file, as people tend to be lazy.

And by increasing signups, you indirectly then influence the price upwards, as there are less coins on the exchange to sell ... and some folks are then trying to obtain more coins to sign up for the program.