Good morning BrunoH,
First of all I am sorry for what happened, I know well how you are feeling regarding the insults that were directed to you, because I have also been through the same experience, of a player that when he lost in checkers in bullet with me, he wished me all kinds of cancer, but once again and as always the FlyOrDie moderators were attentive and relentless, after several reports of abuse from me and other players, he was permanently banned.
As very well informed and instructed by the member John and the excellent video tutorial provided, I also want to reinforce the following: at the precise moment that these situations occur, you should immediately make the abuse report as in that video, because after 10 minutes you will be unable to do so, unless, and alternatively make the capture of images and send afterwards along with the report of the event through this medium:
https://games.flyordie.com/s/reportAbuse.html?portal=flyordie_com&lang=en
Good luck and all the best to you👍
Best Regards
Dav7d