I cant believe that in 2019 people still got scammed by e-mail... I thought it was an era of y2k.
How can scammers have a list of "pre-defined group of players" ? Did they have a man "inside" Bitcasino? What do you think ?
Even in year 2030 people will still fall for those scams. They would have stopped the scamming already if no one trapped in it.
They just send it to 1000's of users and if just 1% are trapped they keep doing it.
These are called phishing attacks and gamblers / online users need to be aware of it. When we receive an email, we should verify its source and the sender. Usually there is little different in domain names which can be noted if we carefully see the email id. The scammers know that there are people who will believe the email is real and will act upon it without any verification.