PLEASE HELP!!! My friend's account has been locked. I don't know why.

Hi

I am a POE player for 8 years and I just invited my friend to play this game this league. And now he is in love with the game.

We were playing together at home for more than a week without doing anything suspicious. He already invested in his id. And now, he got locked out of the blue.

Please help looking at his account. I'm sorry I don't even know how to provide information here.

Character name = MoMoxAFF
email = amo.....