Did you read your email they sent you and go on the earn more section of the app it's 3 bonuses that add up to 20 and you have to buy certain items in a certain time frame to get them
I have no idea... I was hoping to get mine as well and still haven't seen it. Very discouraging already and I don't think it's a good look on them for not sticking to there promise.
So here's the thing with the 20 dollars welcome bonus. Yes, there was an offer saying once you redeem 10 offers you'll get 20$ in rewards. But the app had decided instead of giving this 20 dollar bonus they will give you a free thanksgiving at your local Walmart.