12/29: Bought 4 one way tickets under $100
12/30: Transactions posted
12/31: Under Benefits section, it says "You have used all of your $250 Airline Fee Credit for this year.It will renew again starting Jan 2020"
Waiting for credits to actually post. Which I'm assuming will be the next business day.. Was able to use the remaining credits for 2019 and will get a new set of credits for 2020...