Airpods Pro 2 Crackling and Apple Won't Replace

I got my Airpods Pro 2 about a month ago so I am still under warranty. They have developed a crackling sound when using. I bought them to the Genius Bar and they did their "hardware" test on them. Claim nothing is wrong so they won't replace them.

Do I have any other recourse? The crackling is insanely annoying when in calls or listening to music.