Unfortunately, In-App-Purchases are disabled at the moment so you won't be able to receive Spotify Premium via iTunes. You can still purchase Premium at https://spotify.com/premium 🙂
Hope this helps!
Unfortunately I don't have any other info about this. You may be able to get a refund by reaching out to Apple Support: https://getsupport.apple.com
Hey there you,
Yeah, you! 😁
Welcome - we're glad you joined the Spotify Community!
While you here, let's have a fun game…