AFVC offers certificates for $309 or $100 less than the normal rate for future use. When you go to use them, you have to go to another site, Resort Vacation Certificates, https://www.resortcerts.com, and there is nothing available for the certificate. Everything desirable has upgrade fees. There are locations available on AFVC for the normal weekly price but they are not available on the certificate site. It's a complete SCAM.