I bought a 3-mile Lamborghini drive experience for my son's 25th birthday the day after Boxing Day. The website didn't have an answer to my q as to whether he'd be able to upgrade on the day. Getting through on the phone was a little testing, but once through they were extremely helpful (I had to call twice). My son was knocked out with the present on the day (yesterday). But I as concerned when I went online to forward the certificate to him as when that came through, the previous stated height limit on the deal had changed from 6'6" to 6' - which my son well exceeds. "It ain't over until the fat lady sings...!" as the saying goes. Fingers crossed. And I'll be back on that phone line...