Technically they do, i tried emailing one of my valid codes from when i went in 2015 and they said it was too old to redeem. 2016's do not expire though.
You can still redeem codes from 2012 but with different methods.
Although you can still use the 2016 code with just clicking the link you get in the email.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.