New players are already getting the REWARD Bar across the Top but the rest of just have to be patient since they are slowly releasing it to Current players.. and... Below is a picture of what it will look like when you GET IT, so you can't MISS IT & will no when it shows up..
In order to get the 3 Million Reward you will have to Complete the REWARD Bar Task, which are:
PLAY GAME - LIKE US - INVITE A FRIEND - INSTALL MOBILE - SEND GIFT
Hope that HELPS for all those who are confused...
I really hate that Double Down NEVER explains things when they make new changes, COMMUNICATION is definitely not one of their strong points..