I can add a small piece of information.
For the My VAC Account clients who have signed up for a My VAC Account and have given us a valid e-mail address and expressed a preference for being communicated with electronically and online, we would be sending messages saying “Please check your My VAC Account; we have sent a message to you recently, and you should check it there”, so that they get a secure message from the department.
If a person expresses a wish to communicate with us electronically, which is a new way for us, then we honour that request rather than send them paper mail at this point.