My question is, how is it that when I am playing a game and the other opponents forfeit even before..

My question is, how is it that when I am playing a game and the other opponents forfeit even before scoring the result will be 3 nil against me and again when I am leading 5-0 in 90+ minutes and the opponent forfeits the game will be decided as annulled even when we both are level at 1-1 and the opponent forfeits the game will be decided as 1-4 against me, I have a very stable wifi network and l can't complain about it..... please answer me????