RIOT WHYYYYYYYYYYYY

I was in a match with my friends and sudenly i get disconected I try to reconect but it says its server maintenence After that is over i enter lol and i get leavebuster and my friend it says it wasn't a maitenence and i end up with 20 min ban FOR NO REASONNNNNNNNNNNNNN RIOT FIX YOUR GAME STOP MAKING SKINS