Got a potential bug report: Signed up for Yotta, and referred my wife. She added money to her account and bought tickets. I did not receive the 100 ticket referral bonus or, if I did, cannot figure out how to claim it.
The tickets get applied for the following week's contest. You should see "100 pending tickets" on the home screen of your app. If not, shoot me an email and I'll get it resolved asap!