Someone carry me to Bronze III

This is the 6th time I've made it to my promo series and someone trolls or d/c's.

I know this is normal for most of you and will call me a pussy, but look at this: http://i.imgur.com/6DBv7EM.png

The was the team captain and literally called Top, Jungle, Support, ADC (In that order) then auto locks Garen flash/teleport.

I was second pick and chose adc, waited 10 seconds, then locked in.

So the game starts and bam teleports bot lane then sits there. He says, "I called bottom" (no he didn't) so I was forced to go mid and chogath to go top.

AND SPAM LAUGH AND ALLOW THEMSELVES TO DIE THE FIRST 5 TIMES EACH.

.... 2 nights ago I tried a ranked match and Kayle D/C's and the rest of my team lags so hard that they feed.....

So please, this has been my 6th unsuccessful promo series that I've lost due to trolls (mainly trolls) and d/c's. Someone please help me out or something like maybe give me some tips or idk duo que with me. Whatever works...

PS they had matching usernames (only difference was like 1 number)