On checking today, they are currently processing applications from 12th July.
I sent mine 3rd week in July and it has now expired. I even wrote to my MP pointing out that it was counter-productive to be encouraging drivers back if they can’t get their licence renewed. He sent an email to DVLA but didn’t get anywhere with them
Fortunately, my agency is still giving me work at the moment but keep asking if my licence has been renewed yet. I’m expecting the work to dry up before long…