Whatever the actual reason for the closure seems to be, it would appear that Trade Satoshi seriously does not want customers to withdraw their coins, despite there being only 8 days remaining before the scheduled closure.
There is also a
thread in the German subboard in which several users state that they are forced to update new KYC verification documents, before they are able to withdraw any coins from the exchange. Sadly, no user did manage to successfully withdraw any coins yet. Also the user
Lafu reported that the official TradeSatoshi Discord got closed without a warning.
TradeSatoshis behaviour looks very suspicious and it's likely that they are exit scamming their users.
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I am really feeling sorry for the users concerned and I hope they find a way to get their coins back, before this shithole shuts down.