You can however still get 1 days' credit with it I believe.
Hang on. I found this:
"If you purchased your MYW tickets from a non-Disney source such as AAA or a Florida ticket wholesaler, you can upgrade them and you will only be charged the price difference between the gate price of your old ticket and the gate price of the new one as long as the ticket has been used and you do the upgrade within the 14 day from first use window. Disney will absorb the difference between what you have paid for the ticket and the current gate price. If you upgrade a completely unused MYW ticket that was purchased at a discount, you may lose the discount when you upgrade."
So is this saying that if I buy my ticket from Undercover Tourist, I have to use it first, (I'm assuming to find out if it's valid or not?) when I get there, then they will charge me the difference between what it is worth at their gate (not the discounted price I paid for it) and what the AP would be? And whatever discount I got, would just be "eaten" by them? And if I do all this right inside the gate on the first day I use it, my AP date will be from that day forward? I just have to make sure it's used first?
If I, say, have a 7 day MYW-PH, and then get down there and decide I want an AP, can I upgrade to that? And where can I find this information?
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