Email usually comes 24-48hrs before the test. If it doesn't please contact IRCC .
You can also test access here : https://ct-tc.apps.cic.gc.ca/?lang=en .But it usually works 24 - 48hrs before the test.
Not sure how they are handling online application .. i got my fingerprint request from Vancouver office and test invite from Niagara falls office ..I am based in windsor as well ..
After receiving the AOR .. what is the usual order of things ??? New system shows in progress in all .. what is the sequence they follow ?? BG first or language skills or physical presence. how do they do it ??