KABAM, after dealing with all the cheaters (and props to you, they're almost finally gone) you really have to deal with this problem; I'm sure you know it's a known problem, but it's really important to find a way to overcome it.
I almost lost the match cause of it.
I blanked the player (but high tier celes will know who he is) and I did not blank the alliance cause it's a very famous one so they might deal with it, hopefully, for the best of the game.