Explain the actions of the consultant

What does it mean when an assigned consultant opens a deal to buy, then immediately closes, then opens the same mirror for sale, immediately says to close (explains that this is a castle) and so on the deposit does not remain 50 euros instead of several tens of thousands, This is that the money went to the "interbank", this is the day before their agreed conclusion. After that, he says that it is impossible to withdraw them and proposes to quickly withdraw them through the European Central Bank, still making 1000 euros. In this case, no specifics where this money and on what accounts are.