You don't need the TM to leave feedback. Just copy the URL for this page, click the feedback score under bradleysupplies name, select the appropriate options from the drop down menus, paste the URL in and submit it. It's really simple actually.
To your point, did you initiate the TM with bradleysupplies? If so, he needs to click "accept" on his end and then the thread will be created. But as I said, it's not necessary to leave feedback.