예약 제출 또는 청구서 제출 선택권이 제공되는 이유는 무엇입니까?

We give you the option of submitting either your reservation confirmation or final bill (we don’t need both). If you submit your reservation confirmation, we will get the final bill directly from the hotel after your stay completes. If you submit your final bill, we send this to the hotel for their final validation/approval.