Primary I was hired through Upwork paid 500 usd per two days https://www.upwork.com/d/contracts/16582027, and then they proposed to have a job directly (yeah, that was my mistake, but Larby, boss was very Kind, so I believe him).
I have all the screenshots of my job done http://monosnap.com/list/57759d6d00779106dbe4e853
I have skype talks from start written. When I tried to contact their CFO, Larby CEO said me http://take.ms/Ik0WP
They owe me 1750 USD for 70 hours and 280 USD to my colleague Vlad for 14 hours job.
I am a bit confused, because I didn't met such thing before.