If he cannot withdraw his funds, then the account is like blocked. Even if that user gets access to his account, he loses access to his funds and is a victim of a scam? I read well and understood how good service they are providing. No matter how much you try to convince us on their behalf, people like us who know about 1xbit scam won't believe you.
You're wrong! Very often, such a message appears to new users who claimed bonus and have not yet met the wagering condition.
In this situation, it looks like it is the case, but you don't want to get your brains started because it's easier to scream like the rest of the sheeps.
EDIT
Or maybe he got blocked just because he is a scammer:
There are members like you who are as shameless as you are to defend 1xbit. A casino is scamming their customers with one lame excuse after another, and frustrated member you are screaming here.
Where your favorite casino does not allow customers to withdraw their due money and you are talking about bonuses here. Don't get so frustrated, stop supporting the scam.