lol bug in b4

i´m in bronze 4 in promo and i won the last 10 games inerow but league of legends said that i lost one but i only won so i have to play the 3rd game to get up to bronze 3 but i only need 2 of 3 to get up but league of legends said that i lost one and won one i´m 8RONOX in twitch´s guild in promo u can look when you´re interested in but riot i like to get up without playing the 3rd game pls patch the bug