I don’t have an answer, but have essentially the same data point. Booked a $350 flight on 1/3 through Cap1 travel. No credit yet. Statement even closed in the interim showing the full charge without any offset for credit. Seems like most credits were posting much quicker, but maybe credits from early this year are taking longer for some reason? I don’t have any reason to think mine won’t post, but given it’s my first time using Cap1 Travel it doesn’t give me a great feeling having to check every day.