Can you expand on why your YYC-YYZ flight was delayed?
Did you have an opportunity to re-route at YYC?
At YYZ, were you looked after by the Concierge team? If not, were you refused service by the Concierge team?
Why did you decide to accept a YYZ-YOW-EWR routing when there are plenty of YYZ-EWR direct non-stop flights?
You will probably get a discount code if you write to customer relations.