OK listen up. The 10% vs. 5% off is IP based. I downloaded a free VPN (Windscribe), set it to Canada, and was able to start getting the 10% to pop. Annoyed with myself for not trying it yesterday before placing my orders, but whatever. Got 10% off the deluxe 1/4 Iron Man Mk 3 today so not too shabby. Also got it to pop up for Jabba but no interest in that. After getting a discount to show up, whether I use it or not, I have to empty my cart, log out of my account, clear the cache/history on my browser, and log back in and then add the item before I can get the discount to pop up again. Firefox has been working best for me.
Doesn't seem to work with the newest preorders like the Mk 85.