So my Req came in on Feb 19th but I couldn't find a centre with any early exams. Earliest I could find was March 9th where I did the exam, bloodwork and the X-ray at the same time. They didn't send it in March 16th (I had to call the office a ton of times to ensure they were going to send on time). And then I did a webform because the due date was fast approching letting them know what my doctors office was, when I did the exam and just asking to please provide aon extention if they don't have it by the due date. They recieved it March 17th - the next day through the e-file system.