please help--- upgrading question

[Calnative]

would greatly appreciate any feedback! We can only stay at universal one day. We have 2 day base tickets. Can we upgrade or exchange these for a 1 day park to park? Please let me know if you have done this or if you know if we can

 

[macraven]

You can pay and upgrade the one day ticket to the p2p one as long as you don't have a promotional ticket