im winning a game then my opponent boots me out

Im in a fut champs game and then i score in the last minute to make it 5-3 and then he boots me out of the game and ea has the balls to give me a warning saying im breaching their code of conduct?? Maybe you should get a anti cheat that actually works?!?!? It's genuinely brutal that hackers are still always in the game and they can just do whatever whenever. Fix your game ea this is a disgrace