...and Deb, handling customer support in my case.
I received the game a while ago, but during the happy unpacking (nothing like those crazy things you see online, a very gentle and careful process) I realised one of the black unit blocks was missing. I sent a message to GMT asking for a replacement, and it arrived yesterday - thanks for taking care of your fans, GMT!
I also had an issue with two of the gold blocks. They were an obviously different color than the rest. You could easily pick them out.
They sent replacements immediately and now I am all set. Great service, awesome company.
(Side comment, I don't know how they pull off such great product and service with such a small company.)