Hiya Seiko,
Welcome to planDisney! I’m so excited that you are here, even though I wish it were under better circumstances. Having been to both the Happiest Place and the Most Magical Place on Earth, I can say they are both pretty remarkable. But I understand how frustrating it must be to have Theme Park tickets for one when you need them for the other.
Unfortunately, Theme Park Tickets you pre-purchased for
Disneyland Resort cannot be utilized, refunded, or replaced for Walt Disney World Resort tickets. Theme Park tickets are nonrefundable and nontransferable, so if you were unable to get it fixed through the retailer you purchased from, it is likely not going to be able to be done by a Cast Member. However, I do recommend reaching out to a Cast Member at 714-781-4636 still to talk to them about your mishap. There still may be nothing they can do, but if you explain your situation, perhaps they can provide some assistance or better advice. I know you are planning a visit to Walt Disney World Resort, but if all else fails, you may get to plan a future trip to Disneyland Resort.
Avengers Campus is pretty spectacular, and seeing the Theme Park that Walt Disney himself created is a one-of-a-kind experience for every Disney fan.
I’m so sorry that you are dealing with this issue, Seiko. As a quick tip, the wait times to speak to Cast Members have been longer than usual so try to make your call early or late in the day to lessen your wait.
Happy Planning,
Ashley F.