I still didn't got back my pokemon's, it's 4 day's already. I found at forum note about "lending trick" and i tried to check this with my friend. Unfortunately it's true. After i choosen lending time my friend press Lend and trade back to normal. I'm affraid that happened to me during last lend, and i accepted without knowledge - i was careless.
I still have a hope, that they will back, but now this thread is to close. Because, i don't have any id's and info about the other player or ss. So, you propably can't help me.
Be carefull during lend, don't make my mistake!