if you are caught bubbling in overtime, what does the proctor do afterwards. Does the proctor has to file a report against the student to cancel his score. how do the test-taker knows that her score is cancelled?
The proctor reports the incident to the test supervisor who may (or may not) include the incident in the Irregularity Report which is sent to the CB.
The CB sends you an email.
Do you know approximately how many days after the Test Day the email arrives?
The CB does not commit to a schedule in this instance; an email can arrive at any time.