Duo friends refused to communicate, fed the enemy adc while spamming the chat. I want my lp back.

So the garen got toplane in the champ select, but after the game started he went bot to his premade friend, so our support was forced to go top. Then they fed the enemy adc while spamming the whole chat. At the end they said gg WP, without noticing that they just made us lose the fking game. (well played? wtf is this the enemies played against support on top and a garen botlane that probably bought a lvl 30 account only to play with his friend gfsd90ygyswybfhqwui) I want my lp back cause this wasnt a normal game... i understand, your friend never played the game before but you want to play with him. Thats ok for me if it was a normal game... BUT NOT A FKING RANKED GAME