@Mahdirakib, is there any updates from their customer support?
Just checked about it again and I can see that the previous 8k min deposit requirement is not there anymore so I think it is clear now that the min deposit for the reward is the one in the email.
One thing that can happen if you do not receive this promotion is that you are not a subscriber to the email, right?
Or if you are really curious, you should ask the support team
The promotion is available to be seen under the rewards page so I'm sure it is available to all players.
He should recheck his email as well as open the rewards page under his account tab, if he cant find it under the rewards page then it can be something questionable.