Kicked from ultimate team after a win and it counted as loss

I won 7 to 3 in Gauntlet and as the game is ending i got kicked from ultimate team and it counted as a loss! How is this fair and safe experience when players exploit the game's weakness to completely ruin the game just out of toxicity!

It's not even the first time and it is 100% not an error in my internet connection. Fix these bugs or at least deal with these cheaters!