I’d contact VIP if they are an honest group I think they would have no problem withholding this other sites pay until all your content is removed. While youre doing that contact this jerk and let him know you know and that you have contacted VIP etc – he will remove it!
I would be careful about reporting it as spam – dont want your site removed for being a duplicate/mirror. I have seen older original sites removed along with the new rip offs!
I also would not suggest fighting the fire with 5 gallons of gasoline. Two wrongs dont make a right.