When Dylan won his World invite for CA after winning in FL, Pokemon sent us an email that had documents for us to fill out with information on them and they needed signatures etc. Then we had to mail those back. If they were booking you filled out certain parts of the forms, if we booked then other parts were filled out and we had to send copies of our confirmation for hotel and airplane reservation. Just a word of warning though. We were told we'd be reimbursed at Worlds in CA after we had booked our own stuff, and due to some clerical issue or something on their end, we did not get our check while we were there, we just got our reimbursement check at the end of last year about 3 months or so after we were in CA. So if you are in need of that money, you might want to go ahead and let them book it for you.