I got email about my account being locked

It's a scam. Apple will never threaten to lock your account or otherwise notify that it is.

 In a message Apple will always address you by your real name, never by your email address or Dear Customer. Also the sent-from address should be @apple.com or @itunes.com Additionally Apple does not send attachments.

Avoid phishing emails, fake 'virus' alerts, phony support calls, and other scams - Apple Support

Forward it as an attachment to reportphishing@apple.com

That is a phishing scam and is not from Apple. Do not respond to it. Also see: Avoid phishing emails, fake 'virus' alerts, phony support calls, and other scams - Apple Support