Please note again, the email I received during registration was still sent using the blackjack.fun email, I know this takes time but you can't forget it when it's completely rebranded.
Tried to register new account just to check if they forgot to change their email address for sending the registration email for new users. I notice that they fixed it already since they are using Rollhub email as sender on my registration email.
They quickly fixed maybe after you pointed it out to them. They should create a different ANN thread already to move the discussion there.
Maybe start new promotion again in the forum too.