I activated our annual passes on August 21, 2016. I just got of the phone with a CM that was able to add the 13th month on all four of our passes. She said they are honoring passes as far back as July.I purchased my annual pass on September 27th. Figures. LOL! But it was really fun when all of a sudden my discount at the stores switched to 20%! That worked out quite nicely for me!