Placement Match's

I just finished all of my placement match's. Me and a Buddy of mine went 5-5 in our 10 placement match's. after we finished our tenth game, it said we were in bronze 5. This dissapoints me because i look in bronze devision 1 and there are people with 2 wins and 8 losses in there placements and there in bronze devision 1. im scared to look in the silver devisions. please fix your bug. This doesn't seem right to the people that do well and the people that only win 1 or 2 of there games get put closer to silver than some one who wins half of there games!