I followed the guide below to use my 7-night FNA to book a cat 3 Westin in Feb, but stuck on step 3 --- there is no option to use the certificate. The certificate was extended for a year and expires in July 2020. Did I miss something?
> How to Use Points / Certificates
> 1. Check "Use points / certificates" in the hotel search box and select "find."
> 2. Select hotel and room type.
> 3. Review the reservation details. The option to use your certificate should already be checked.
> 4. Book your free nights.
My FNA: Free Night Award Certificates (1) Partial Package - 7 nights category 1-4 Expires: 07/24/2020