Also I would like to mention one thing, I sent in a webform as well that I received my correspondence letter but have not received any further notification and it's been over a week and then eventually got a PPR email. When I got my visa, the issue date on it was July 29 but my app was approved on August 16 and my biometrics correspondence letter came on July 28. That's usually the case but the VO's sometimes don't respond and all so if you don't get a response within a week, I would recommend that you send in a webform and a email to IRCC Abu Dhabi....because time is short, otherwise if you had like a month for classes to begin then you could've waited...
But do wait a few days to a week at least....