Riots client lost me over 200 LP in 2 weeks.

Over 10 times stuck in loading screen and got "LEAVER AFK REMAKE - 20LP" like I did it on purpose. And riot support doesn't give a shit, totally ignored me when I said how much LP I lost and not to say I had leaver buster so I had to wait 20 mins before each game for 10 games. Didn't even bother saying they can't remove that or whatever, they just ignored that and told me to use hextech repair tool, which didn't do anything. I had to uninstall and reinstall whole league, and it worked for couple days, and today again -21 LP because your client is garbage. Not to say when you get in champ select, whole screen is black and you have to dodge. But hey all my fault tho.