The few times I have had a missed stay I have had two situations: 1 - I submitted all the details online at the HHonors website and had the points posted within a week or two. 2 - I called the hotel directly to ensure that my HHonors number was posted and they submitted it...they said yes, but it took almost three weeks. If you have all your folio details, I would just submit it at the website. You don't have to fax anything, but you will need the details from yor folio.