A user has systematically downvoted seven of my answers. How can I report him/her and reverse the attack?

More info: comments on this question: math.stackexchange.com/questions/2088302/…

Exchanges were immediaterly followed by two of my old answers being downvoted. When I called the user out on it, five more. Now I'm no detective...

And he just flat-out admitted he did it in the linked comments. Might delete the comments, but I know mods can see deleted comments.

He deleted the comment where he admitted it, and has since begun downvoting everything of mine he can find. I will stop spamming the room now, just wanted to give you all the info. Just let me know what I need to do.

@TheCount There is a daily script that runs at about 03:00UTC to automatically detect and reverse abusing voting patterns. In general, rapid-fire downvoting doesn't require any human intervention to correct. Indeed checking your reputation history will show this happened.