Hi,
That's strange. I personally never ordered there, but as you started a querry on PayPal, they must answer or you get a refund. I have two of these uniform color sets. They are fine, but definitely not the only game in town. If it shouldn't work at all to order them, I can help to find a replacement, if you like. German Feldgrau of WWI had a wide rage of different shades and the Fliegertruppe troops wore black uniforms anyway (Bavarian units blue).
I cross my fingers for you
Borsos