If anyone care do NOT use this site.
https://currency.com/Its a scam, their using some non-sense policy of forcing people to show them stupid screenshots of a wallet address somehow connected to your email address which can't really happen. How many email addresses are assigned to a crypto address? None. its bullshit used as an excuse to keep your money.
Huge scam.
This will accusation will never be verify you unless you provide the details of your issue. There is no way an exchange will hold your funds without a valid reason. Actually this is my first time to saw this exchange and I'm not that familiar on it but I will not judge them until I know the full story.
Why you choose this exchange ove Well known exchange like Binance, Kucoin, Okex and Huobi? The exchange you requires KYC and the exchange I mention above has same feature to that exchange?