Please note that i stopped playing Vigor for a long time finally, so im not sure if the game still has their reporting system.

Press ESC (Escape) and then select players category, you will see everyone in round. Select the player, report and select the reason. Then send the report.

Visit their profile by going the leaderboard. You will see small buttons such as gifting and adding, but you will click Three Dots next to them and select "Report Player" button. Explain the cheat, the way how they did it, adding screenshoots would make it better if you got any, so mods will learn understand.

Send the report and its done. I don't prefer mass report, so reporting once will be good. Thanks for reading.