I don't know also what's that mean, but those guys can't be trusted IMO, you can see all the transaction on their "LATEST TRANSACTIONS" section with the dates of 2017
2017-11-11 08:36:11 k*******2 0.03990500 BTC 08fda055023cbd00f18591faaa06932dddc098a87d88c33e417b03c822a304b2
2017-11-11 08:07:34 k******0 0.01887500 BTC abb85779e71b2720db75c09abcee2eba0dbbbddfbad6d2435b0330b3ec9e2ebd
2017-11-11 07:06:19 H*******n 0.05012606 BTC 371254cdd23df4758e00824483e3f9b75580f817e1c6b4b417d4e1731d01d311
But the thing is the site was just created on March this year
Registrar URL:
http://www.namecheap.comUpdated Date: 2018-03-01T12:26:50Z
Creation Date: 2018-03-01T11:53:21Z
Registry Expiry Date: 2019-03-01T11:53:21Z
So what will you expect for that? Of course, if they want you to withdraw without any reason, they will process it asap, but on your issue seems that they make any reasons for you not to withdraw your funds, obviously, you're not even informed that it required such details when you withdraw.
And they will not any put any false info on their site as stated above if they are totally legit, but seriously what will you expect from a cloud mining? Duh