Re: battlefield log user name issue
@Player_busks2ui hey, just to flesh this out, if you are looking to change your Battlelog ID to match your XBL Gamer Tag and its already being 'utilized' by another player then there is nothing you can do, its kind of like creating an email address first come first served policy.
You will probably have to adapt your user ID slightly.
However, if I'm reading the rest of your issue correctly, are you saying that someone has potentially compromised your email account then you would need to reach out to your specific email provider.
Or if its the case you believe your EA account has been compromised you would need to contact https://help.ea.com/en/ as they are the only people who can assist with compromised accounts.