To clarify things better here is an example : if you were to deposit $1000 and win $200 in your first few games then you wouldnt be able to withdraw your winnings or even your deposits without wagering at least $5000. This means that 80% of the time, you would lose your money before reaching the required amount.
In my opinion this term is unfair.
This is not fair at all. Yes, I have seen casinos require their players to wager 50x or more if they take deposit, welcome, or other kinds of bonuses. That make sense because they won't give you something for free. You have to play there and you have to win. I also saw casinos need a wager requirement for any deposits to prevent money laundering. But, it was no more than 1x. Having five times wagering requirements on each deposit is not fair at all.
You should avoid that kind of casino at any cost. Of course, you have to read their ToS before you sign up and make a deposit. Because they may already mention this term on their ToS page. If you can make your first withdrawal from their platform, run away with your money and never look back. Those casinos are designed to steal money from users.
It's not fair, but that's how it's always been. Some gamblers manage to win some money but have to pass the wagering requirements before withdrawing the money, especially when they follow a promo given by the casino. If the wagering requirement is under 10x, it will be fine as it is not too demanding. But usually, casinos enforce high wagering requirements, so only a few gamblers manage to pass those requirements and withdraw their money. Before joining any promo, we must make sure we know the requirements so that we are not disappointed and only take part in promotions that we can afford so that we don't use a lot of money to participate.