I have check before share on forum
this is really from Stake because it was sent via email the same as when I received some other bonuses, such as monthly bonuses and the like.
Yes, it seems that not all users get the same offer, I don't understand how they select users to qualify for offers like this
This kind of bonus is usually sent to players with low deposit activities to attract players to come back. When was your last deposit in Stake? If I can remember it correctly, I received similar email but it was for my Primedice account after more than a year with no deposits. Imo it should be working on any deposit, so you can receive the bonus with crypto deposit but ofc you can ask live support if you are not fully sure.