Hi, Donna!
Welcome to planDisney, and thanks for sharing your question with us!
Magic Key Passes are currently sold out, so the best way to visit the Disneyland Resort in the near future is to use
regular tickets. I always recommend getting
Park Hopper tickets at the Disneyland Resort because the parks are very close to each other, so that would be my suggestion if you're visiting soon!
You'll be good to go if you have already purchased a Magic Key Pass! It's important to remember, though, that you won't be able to receive a refund and set up a payment plan after the transaction is finalized.
If Magic Key Pass sales resume at some point, you'll be able to set a payment plan as you go through the purchase flow, but you must be logged into your account to see that option.
I hope this helps you create many memories at the Disneyland Resort soon, Donna!
May the magic be with you,
Julie