Spotify will have a phone number of someone they can call.

I've had this issue with google too. They'll shut down your account, your whole account - google apps email and all - if an automated system detects something dodgy. In my case an automated system at ebay accused my site of phishing which it wasn't.

There is a paid support option, but when your account is shut down you are unable to access the required code.

I don't think you can appreciate how inaccessible Google is until they decide you're a bad actor.