feng, I sent you a message two days ago but you haven't answered yet, I hope you see this.
My two sets arrived, one WISE and another GREY one. There was a keycap missing in each of them: on the WISE set the Pageg Up key is missing (actually you sent me two Page Down keys and no Page Up on this set), on the GREY set the Down arrow key is missing. I hope you make this right and send me the two missing keys.
It's also relevant to remind that the grey on both sets are of different tonality, so they shouldn't be mixed when sending them. Right now I'm using the GREY set with a borrowed Down arrow key from my WISE set, but it sucks that they're different tonality since the GREY set has darker keys. Meanwhile the other set is useless.
EDIT: Well, there's a guy on the previous page with 2x Pg UP keys. It seems our keys got mixed. If feng doesn't do it right and ship us the right keys, I think we can at least work out a trade. Still, shame on you, Vortex.