Hiya, Breanna! Welcome to planDisney!
The answer to your question depends on whether you'd like to change your card information for a Magic Key Monthly Payment or whether it is for your purchases through your Disney Account (think Mobile Food and Genie+ purchases).
If you are a California resident and would like to change the card for your Magic Key monthly payment, you will want to call the
Magic Key Holder phone line and speak with a Cast Member. Alternatively, you may visit the Disneyland Resort Main Entrance Ticket Booths in person, if you would prefer.
Breanna, if however, you are hoping to change the credit card(s) associated with your Disney Account and
Disneyland Mobile App purchases, you can do so in the Disneyland App or on the
Disneyland website. Within the Disneyland Mobile app, from the home screen click the “hamburger” icon (☰) on the bottom right of the navigation menu. Scroll down to "Profile" and you will be prompted to log into your Disney account. From there navigate to "Payment Method" and you can update or remove payment methods. From a computer,
log into your account at the top of the menu and then click on "My Disneyland" on the right of the navigation bar. Scroll down to "Payment Method," where you can store and update up to six debit or credit cards for all web and app purchases.
I hope this information helps, Breanna. Please visit us again soon!
Melissa