I want the new dinosaur items, but I haven't seen them stocked yet. Can I keep my Subeutique invite and wait for the shop to restock what I want before I buy something? Or would it expire and kick me out after a certain time?

Nope. As long as you have at least one invitation redeemed and in your Currencies, you can view the shop any time c: The only way to use up an invite is to buy something

Yeah, what said.

You may have been thinking of how the Blackheart Hollow will kick people out if you refresh too much in a short period of time, and then you have to wait a bit before you can go back. But the Subeautique has no such feature.

Yaaay! Thanks guys c: