Loosing promo because of a afking player.

Seriously tired of shit like that. its in silver and its in gold. i just got a jinx player start the game tell us her ping was shit and walk to the fountain. Now i'm back in 65 LP. sure i get the next promo with a free win but that dosent change that i could have got it there and now.

why do good player have to tolerate this shit and why is there no compensation for having asshole players ruining your game. its straight up 20 min of loosing and if you do surrender you still loose the game and LP.