Downgrade to free account, how long is the grace period?

So, my account was supposed to downgrade to a free account on August 8, 2024. That day has come and gone, and I still show as a premium account. How long does it usually take for the downgrade to occur? If you need to look at my account, username is drchuck. Thanks.

Every premium downgrade gets a free month long grace period. You should have received an email saying so. If you check your spam folder, would you mind marking it as not spam? Thanks!

Actually, I did get the email. It didn’t get sorted into my spam folder, but I read it kind of quickly and didn’t notice the month grace period on it! Thanks!