I just opened My Shop today and I have 4 skins left in there. The deadline for closing it was supposed to be 8th January. Now I have lost the only skin that I actually considered (and planned) buying. RIP my Death Blossom Kha :(.
EDIT: I just asked my little brother to check his account. Same story, he has also lost all but 4 skins.
"Fewer than 6 offers are shown if most eligible content has already been unlocked"
But the thing is, neither of us hasn't unlocked anything yet.