how would you know BOTH 1) the bitcoin wallet address they published on their website for you to send the deposit and 2) the username that wallet was assigned to by their system. In fact there is no way for you to know that unless you logged into their system, read the wallet address and sent the deposit. This is something they conveniently ignore when they claim they have no way to authenticate your claims.
You are 100% correct Cosmanto! I pointed the same fact out to them in a support message. They responded that I was hacked. Not maybe I was hacked or it might be possible that I was hacked. I think they meant to respond that I was someone who "hacked (myself)" to gain that information. They were not even smart enough to put it in the proper context in continuation of their scam.
Please do not let yourself be scammed by these morons.
Bitcoin Fog is a Scam!