Wait a sec, how was exactly you "lose" your money while trading on yobit? You bought on higher price then you sold it on lower price?
I used btc to buy altcoin but btc lost, altcoin not in my wallet. It is considered lost?
You sure that you do able to click a sell order? its impossible for you not to get the tokens if you purchased a token with btc. would you mind on posting a screenshot? so that we would able to know on what is really happening or the situation you are experiencing now., having visuals would be a great help on identfying.