Not a whale, so here is hoping this won't be a problem. Just in case, what amount of cash is considered "large"? Their site says 1 BTC, in European banks they frown upon 2000-3000 EUR transactions, so I'm at a loss.
And what are the documents they can ask? They asked me the id, a selfie and a bank statement to check address, that's fine I guess? Same as with Wirex for example
Why do you still want to use this shady exchange despite a lot of red flag on it while there’s a lot of user friendly exchange like Binance that you will not be worried to deposit any amount since they have a better liquidity and proof of reserves to back every user balance.
I remember using a drivers license when I verify my Hitbtc account before but I’m not sure how they upgrade the KYC system since they become stricter now compared before.
Their trust page
https://bitcointalk.org/index.php?action=trust;u=194708 as big warning to stay from this exchange. They are scammer even before until now.