Cannot make account

[user-removed]

Hello! 

I have been invited to Spotify Premium for Family. I do not have an account yet. However, when I want to create a new account, the website tells me my email address is already in use. Then, why I try to access this "account" (that I never created) by asking if I can reset my password, the website tells me that I am trying to log in using my Facebook-account username and password. But I'm not, because I don't have Spotify and I'd never link it to my Facebook if I had. Then I read somewhere that logging in and asking for a new password in incognito mode may help, but it doesn't. 

So now I'm stuck going back and forth between these two options, while neither function.

There is no chat option or email address to be found anywhere on the website, so I am trying here: how to solve this?

Thank you very much in advance. 

Kind regards,

Judith