내가 방명록 회원이라는 사실을 호텔에 알려야 합니까?

No. Participating hotels have agreed to issue your loyalty rewards if you have Eligible Charges and have an e-mail address on the reservation that matches an e-mail listed on your The Guestbook account. You do need to ensure that you submit either your reservation confirmation or final bill to The Guestbook within 60 days after checkout.