No Airline Fee Credit for United Travel Bank

I have a new Amex Platinum card that I received 1/1. I chose United for the Airline Fee Credit on 1/3, and then made 2X $100 TravelBank purchases on 1/6.

These have posted to my statement, but do not appear to have triggered the Airline Fee Credit.

Is it possible it may take more time to get credited? Or am I likely SOL here?