The retailer isn't responsible for customs charges, it's all a matter of your country's customs dept. Retailers can mark a lower value on the customs form, but if your parcel is lost in the mail etc. they have no means for recourse, and it's also illegal to do so.
Got the rock coat from nmwa, bark sweat from Other and also got my wife the long trench (hirsuta) from this season. Stuff is so sick. Thinking I need to cop some of the trousers from this season too now.
I'll second what Seijiro said about the SS-13 ma1. If you have the build for it and just wear as you would say, a sweatshirt and not as an all-weather piece, it is actually pretty nice. I find myself wearing it instead of jackets that cost 6 x as much.