Well....I don't think you will have time to order a new rewards card (like CarolAnnB said), as they take awhile to arrive in the mail. If you find the one you already have, and it is active, you can call and have them immediately transfer rewards dollars. If you don't find yours, you can get one at the park (I believe one of the above listed locations is in the esplenade, so you wouldn't need a ticket to get to it). I know I got one at the park before....and I forget if they transferred the reward dollars for me, or if I had to call and do it myself.
Anyway, once you have dollars on your new rewards card, you could go to the ticket window and buy tickets. But you pay more there. If there is a way to get to a computer, (at your hotel???) you could try the purchase online option (cheaper)....provided the hotel can then print them out for you (once you receive them as email attachments, which was immediately after purchase the last time I did it). Plus I'm not certain if you can use your rewards dollars to buy tickets from Disneyland.com. But I would imagine you could.
My reply sounds too confusing. Hopefully someone else will have better advice. Or better yet...you find your existing card!!! Good luck... and have a great trip!
