When can I upgrade tickets?

[Jajone]

I purchased 5 day tickets from undercover tourist, but would like to upgrade to 6 day. Can I do this ahead of time and will it show 6 days then on my MDE? Do I call Disney or undercover tourist?

 

[erionm]

Upgrades can only be done in person at WDW.

 

[siskaren]

Plus you should wait until you've used it once before upgrading, because that bridges the price up to gate price so that you don't lose your UT discount.