I'm successful getting the coupon registered, but I can't find your watch face in the Gear store!
To get the Coupon:
- tap three dots in top right corner
- tap "My apps"
(May have to sign back into Samsung account)
- tap [your email address or Samsung user name]
- enter Samsung account password
- tap "Payment methods", "Coupons"
- tap Register, and Enter the code
Did you try searching "Darth Star"?
Yes I just tried it and it is still showing up just fine. You can either search for "Darth Star" or "ConcepTech" without the quotes obviously... either one should net you the correct app. Let me know if you get it. I believe that once you have registered a coupon code it is yours and at that point the code becomes invalid to anyone else but you... so it should be fine when you try again.