Yes Peter. I don't get it either. It is bullying mentality from the safety of their smartphones. No courage to do it face to face. People innocently ask questions, albeit some quite naively, and then get blindsided by someone hiding on a computer.
A hint. Get the letter while you are in Canada. Check to make sure: 1) that the Federal Gov't will send out email letters to you, and 2) that they will send snail mail hard copies to both a Canadian and non-Canadian address.