Any time I ever had the slightest question about a GMM product and emailed them Loren ALWAYS personally responded within a day. Customer service is definitely a priority with him, email him with your problem and I'm sure he will help you.
Coincidentally I just placed an order for the international flag decal set from him today. (as well as a few brass sets) I've never ordered decals from him before, I hope they're all right.