Out of curiosity and perhaps could be a beneficial knowledge for future reference or other users who stumbled upon this thread, do you mind to give a bit more context? Where's this $666 came from? A deposit fee?
That's the price gap between hitbtc and other exchanges but according to your screenshot, the gap must be far higher. I myself haven't checked DOIGHE price in hitbtc though but I'm well aware of this issue since the beginning. It started when DOGE got the first pump. After that, they have manipulated this and scammed thousands of its clients in a way that no one even complain about the valid cases to anyone. This update shit doesn't take more than a few days but they are still refusing to fix it which clears the issue that they are actually scamming people by forcing them to sell the DOGHE with lower price.