Nope. No banner and no message. It allowed me to enter the code and even showed the resulting $7.80 discount on the Hitchock Vol. 2 4K set I wanted in my cart, and I was signed in. When I checked out, it reverted to the no-code price AFTER it had charged my card. I had to cancel the order...
GRUV still allows current account holders to use the SIGNUP20 code and shows the discount in your cart, but when you check out it's removed after you submit your payment info, and you're charged full price without your consent. Come on Universal, fix it already!