Spaming and harassing in the chat with multiply accounts

player in chat is spaming and harassing in SC2 game. Even if i report him, he continue avoid communication blocks by “whisper” mode, he is continue spaming and harassing even if i report his multiply accounts. butaway the major names of his accounts with exact same Nickname. And u cannot do anything about this. In web site support u cannot report a player that spames/harasses in the chat. I have screen recorded if u want