Apple Music has kicked me out and when I try to re-sign up it recognizes my e-mail as in use

Thank you so much! I actually figured this one out on my own. After some intense googling and YouTubing and coming to no avail, I figured out it is easier to go onto your computer to update your credit card information. I actually downloaded the Apple Music app to my computer and then clicked around on the app (I was logged in as myself, but I of course was unable to access music still). By chance I stumbled on a button that read, "There was a problem with your last payment," or something to that extent. Shortly after clicking the button a screen popped up where I could type in my new card information. I am now happily streaming Taylor Swift's new album! :))