After logging in, there is a notation on the TR website that says "Due to the COVID-19 pandemic, Reward Credit expirations have been paused until at least September 1, 2020. We are also making Tier Status easier to achieve and will share details soon. Stay tuned."

Does anyone know what their plan is yet? I do not think the extra TCs were an earned bonus of any type. They just appeared in the last day or two.