This could be a phishing attack; did you check to see if the email was the official one? Because most times hackers could use email that looks like the official email of a site to try to phise users of that site so do a thorough check on the email address and also the link that was sent to you if it’s the original site link.
Edit: Obviously I didn't ask for a new password and I have confirmed my identity ages ago.
Then go and change your password immediately and also your email address. Like I said earlier it’s possible that the email was not from the support personnel but from a hacker that wants you to believe it’s from support, so just do a proper security check on your account.