If you look under your HHonors activity, then click on redemption history, it should have your free night certificate listed. It has a certificate number with it that I recommend you have handy when you call HH. They should have emailed or snail mailed you the certificate. If they didn't, when you talk to HH, ask them to fax it to you right then. Thats how I had to get my 3 from last summer.