Ranked..... Please read....

Excuse me i was in my silver 1 promos and when it happened it gave me a free win because i had like 94 LP, well i lost the first match and then i won the second so thats 2 wins 1 lost and for some reason when i won the 2nd game it says congrats you have qualified for the silver 1 promos....... i dont know if this is a bug but..... that really ticked me off.