In the middle of a relocation I just lost a little bag with all my Disney stuff: a few dollars, my DVC membership card, my Shareholder card and the Annual pass for DLP 
The pass will expire in mid May and I'm planning to go to DLP in late May, so I won't need it before it expires.
When I'll go in late May I'll renew it and hope to get the 18 months duration. Since I lost the existing passport, what is the best way to do this?
Can I purchase the renewal at Guest service and then go to the Passport Office inside the park? Will the AP Office be able to find me and renew with the offer? Or do I have to give some detail to Guest service too?
Thanks

The pass will expire in mid May and I'm planning to go to DLP in late May, so I won't need it before it expires.
When I'll go in late May I'll renew it and hope to get the 18 months duration. Since I lost the existing passport, what is the best way to do this?
Can I purchase the renewal at Guest service and then go to the Passport Office inside the park? Will the AP Office be able to find me and renew with the offer? Or do I have to give some detail to Guest service too?
Thanks