Accounts aren't deleted unless you first contact support and ask them to delete it.
If you are having trouble logging in,
I suggest you contact support so they can help you https://www.spotify.com/about-us/contact/contact-spotify-anonymous/
If you get an automated reply email telling you to check the help section or the community, you need to reply back to it, even if it's from a no-reply address.
Support usually replies within 24-48 hours.