I've always had very good turn-around time with them.
Don't forget, the National just ended.
I hope that is the reason. I was considering having them to authenticate some more of my signatures but if it takes them a month or longer then I'll probably think twice before I do. I once sent in autograph for someone else to PSA and they were quick. About a week.
The National was the first week of August. One month is typical for a TPA to authenticate an item, however.