I saw some newbie fill the form use private key not ERC20 wallet address, my suggestion separate your private key and your wallet address in different note, at least less mistake when you put in the form. good thing I already anticipate for that.
second don't click any suspicious email that saying someone tried open your wallet and you need recover it. that's phishing email. if you worry about your account after see that, just create new wallet and move all fund fast.