This is clearly an issue and no one explains why customers do not receive the rewards e-mail. If it is technical reason, a business tactic etc.
I would advise each customer to start their own thread, rather than showing their own issue in someone else's thread. It will only get fixed for good for everyone now and in the future if the scale of the issue is highlighted properly.
It is also not an obvious process the whole thing.
Went live on 24/09. No rewards e-mail. I don't want and don't need an apology. I just want to see this working properly. I am going to be told that 'this is was triggered for you and need to wait 30 days'. But what if nothing arrives in 30 days, will I miss a deadline to claim?