TAXI.com

I have only submitted pieces to Taxi very close to deadlines so far. If I were to submit earlier, do the screeners listen to submissions and give feedback before the deadline is over, so that I could make revisions and resubmit before the listing closes?

"Once my submission is received, how long will it be before I get a response from TAXI?"
You will typically hear back from TAXI in two to four weeks from the deadline date of the listing you submitted for. For example: if you send in a submission on August 16th, but the deadline for the listing isn't until September 7th, you will hear back from us about two to four weeks after September 7th. We don't screen the submissions as they arrive. We screen them right after the deadline passes."

https://www.taxi.com/member/

Also, on top of what irthlingz mentioned, "no resubmissions"