Some guy threatened me to mass report me. What can I do?

I know, some of you will say I probably deserve it (I don't). The thing is I was playing some high rated player from Brazil and the connection was decent, but it got worse after the second half. Probably because of it, I scored one goal (the game was 2-2 at that point), and shortly after the game was voided. So he texts me telling me that I am a cheater, and that ALL his friends will report me to Konami. Does Konami even check what really happened, or am I done?