Thanks for reaching out. We're sorry to hear you're having trouble!
We know it sounds simple, but it's often overlooked. Could you try restarting your device? If that doesn't help, let's try a quick reinstall. Just follow the steps here.
We'd also recommend double-checking you're logging into the right account. If you’re not sure what email address is linked to the Premium account, we’d recommend having a quick scan of the email accounts you own for emails from ‘email@example.com’. That way, you can determine which one you used to sign up for at www.spotify.com, and then log in with this 🙂
If you're still having trouble, could you let us know the exact version of Spotify and the exact version of the operating system that you're running?