You are quite correct. A rather unique situation and the one that could be hard to prove. At this point Yobit is the only one that holds the answer to who and how created these codes and where they went. A simple sweep trough the logs would do the magic. But, apparently we are way beyond the point of expecting them to explain and resolve that. I was kind of hopping they would but to be honest deep down I knew they won't and I took some steps.

For the last couple of days I've been exchanging phone calls with a friend of a friend that works at VTB bank in Moscow, at their information security center. The guy was quite friendly and is willing to help as much as he can. I explained my situation, forwarded what I had and got some replies back. He told me he knows of Yobit and that they already were for a couple of times under the investigation for the similar situations in past. He explained that there are certain legal steps I should consider taking in this matter, which will cost me nothing and will insure a positive resolution. He promised to make some inquiries and give me more details on the following Monday or Tuesday.

So, there you go. One thing is for sure, I will not sit back with my hands crossed and forget about my money. One way or the other, I will have my BTC's back with the interest rate.

Wish me luck and I'll try to keep you posted!