APPLE MUSIC DOESN’T WORK

hello,

I got my AirPods a while a ago. I decided to sign up for the free 6 month subscription or Apple Music before the 90 days deadline. Which I did on the 7th of April. And I was using the app but now it doesn’t let me hear music and it doesn’t even show that I ever signed up for the 6 month free music. This is so not fair, there’s a glitch in your system and my music stopped. I need this to work please help me out here