A friend of mine has 3 one-day one-park passes that say “non-refundable, non-transferable value” on them. They expire Aug. 9th, so she’s looking to sell them, since she won’t get down there again before then. She was in town for her husband’s work gathering, so I assume the tickets were purchased through the company? Anyway, I’m wondering if I buy those tickets: 1) Can I upgrade them at all? Add days, make them 2-park, anything?, and 2) Does “value” mean they’re only good certain days? Thanks!