at first they said "Unfortunately, we cannot return them to You. It is technically impossible." 
and  I said them "if they want they can do" because I knew that they did it before.
after that they said "We will try to return them to you but does not guarantee that it will happen."
and of course they did nothing

Can you see that how professional they are...

yeah I am watching too, it happened 3-4 times. strange 

I did the same mistake and my BTCs gone, ok that was my mistake but also it's about design of the BTC-e's deposit page. At least they can put a warning clause on the page. They had better warn people if it's possible to send BTC to TRC account via "WRONG ADRESS", it cost 150$ to learn this for me 

You say they gave your BTC back but I did the same mistake and I sent BTC to TRC address on BTC-e, they said dismissively "Unfortunately, we cannot return them to You. It is technically impossible" and finally I understand that they don't wanna move their fingers for their customers problems.