Man w multiacc

how i can report this guy? https://www.faceit.com/en/players/FOXXXU. Second acc (288h, 11 past 2 weeks). His main acc w cs ban https://steamcommunity.com/id/rayannnnnLUJ and faceit w ban for multi

https://www.faceit.com/en/players/RaYaN1337 faceit w ban