If you've purchased a past Topaz collection from our store, login to your account and navigate to topazlabs.com/store to add Glow to your cart. Once inside your cart, you should see a $10 credit applied to Glow.
Don't see the discount? First make sure you are logged in. If you purchased a collection or bundle from a trade show or reseller, our store's discount technology will not add the $10 to your account as it only identifies in-store purchases. Bundle upgrades will not be taken into account by our store either. Please contact support regarding this. Be sure to list a proof of purchase of the Topaz collection or past bundle.