I have a gmail address that I secured back in 2004 which is fairly short in length. Multiple people other than myself have used that email to sign up for all sorts of things which never bothered to confirm that the user actually owned the account before happily signing them up. AWS accounts, hotel sites, innumerable soccer and fantasy-football related sites, etc.
Every time I would try to reach out to the service to tell them that I had never signed up for an account as the email holder, they would give me the same non-answer: "Well if you own the email account, just reset your password and then delete it!" Nope. Not doing that. It was their negligence that allowed the account to be created under my email in the first place. I am not going to acknowledge ownership of the account to cover their fuck-up.