wrongfully labled a leaver

while playing my last promotion to gold 2, my internet cuts out for 5-7 min. It came back up and i was able to get back in the game and help my team win the game. after that i was labled as a leaver, had 36 LP taken away from me, and a loss put on my promotion. my team even welcomed me back to the game. how can riot continue to use a system that screws people over that have internet problems. i want my LP, my Win, and my promotion back that the system stole from me for no reason. wtf riot.