If you're on Premium, try signing out and back into the app.
If it says Free, check the receipt Spotify send to your email inbox. Make sure you're signing in with the username on that receipt. If the username on your receipt is a 10 digit number, please sign in with your Facebook login details.
If that doesn't help, please take this survey that can point you out in the right direction.
Let me know if this helps 🙂
P.S. I've snipped out your email address for security reasons 🙂