Take the confirmation number with you that you got when purchased the renewal. They should be able to find you in their system that way.
I don't know when you ordered them, but I would imagine they should arrive soon because if there's not enough time for them to ship them, they usually will only allow a will-call purchase.
If they haven't arrived by tomorrow, I would call 407-WDISNEY, and explain the situation. See what they've got to say.