The things sold out return? Like Orc colour returns in days, months or weeks?

First: Don't use Caps Lock in all the sentence.
Second: As Orc is one of the cheapest color, it sold out quickly.
Three: Sometimes they do re-stock, but usually, they don't.

they usually come back within a week i believe

If you are talking about a general re-stock, that is most likely not going to happen, I don't know about singular joints.

haha they are restocking it all the time
i just pmed stil when the textures were sold out and they were restocked next day
-.-

but i applied a color but i don't see it why? it takes some time?

Yes, it takes time; and the items in the stock can only be restocked by certain people, who you should not bug.