How to replace damaged AirPod Pro under AppleCare?

My husband bought me a iPod pros last May in 2022. Got a new puppy, he found one of my earbuds and chewed it up, but I still have it. How do I replace my earbuds? I have the receipt for the purchase that shows the iPods Pro and AppleCare purchases from last May.

[Re-Titled by Moderator]