@darlicious You are owed $2.
The August Community rewards were granted on the same morning as your renewal on September 7th. It's possible that it wasn't there in time be converted to account balance and then used as plan payment. If that's what happened, it should have stayed in the rewards section of your account, and when your top 5% $10 reward was granted, it should have been added to the $2 and shown a total Community reward of $12.
Moderators should be able to see that you were given a $2 Community rewards for August participation but that but that it was never applied to any plan payment.