Please allow two to four weeks for your membership packet, including permanent cards to arrive. (sheddaquarium.org)
So while you're earing permanent cards to use outside the dungeon, you use whatever you are given and whatever you earn one each run. (gamespace.com)
Getting Your Card: If you registered for your card online, the issuer may give you a temporary card number to use for purchases online or over the phone while you wait for your permanent card. (valuepenguin.com)