I noticed contradictory things on the site, you can enter dogecoins on it, but you cannot withdraw or send to other users of the site. What is wrong because you make users enter the doge and never leave because there is no way to leave. The right thing is to block the entrance, I even want pressure on that, as it is clearly an act of bad faith. Huh
This happens when there is a price difference between the coins on the exchange and the real market price. Trusted exchanges close the deposit and withdrawal as well, but in such cases in weak exchanges there is certainly bad faith when they leave the deposit open and close the withdrawal. This is a kind of trap. !!!
I used mercatox.com years ago to deposit some ICO's because it was only listed on this exchange, it was good in the past but now I don't know about it, but the exchange certainly has many problems especially the lack of liquidity and support.
I'm afraid you have no other solution but to be patient and contact support, it is possible that you will get some compensation.