I won but he got the points. It happened trice now when I pvp. Because of it I lost 21 points. 21! Thats freaken big in the top league. We only gain 1-15 points per win just to be taken away by a bug. Please fix this.
i also xperience dis bug many times. when match end the my net connection got slow. a -minus points deducted on me and defeat added on my record (mostly my defeat comes from internet slowsped here in ph lol)
it concert the internet connection or mobile data I also experience all my arena exp go back to zero 
If you do not have a stable internet connection and disconnect from the server, it will count as an “abbandon” and therefore you will lose points. I do not know if anyone on our end can help you. 