I have a related schedule change question.............

On a T+ restricted trans-border fare, will AC provide a full refund? I know UA will do so, but I read the t's+c's (see below) and I am doubtful if AC ever allows a full refund?

Schedules and timetables
Time and aircraft type shown in timetables or elsewhere are approximate and not guaranteed, and form no part of the contract. Schedules are subject to change without notice and carrier assumes no responsibility for passenger making connections not included as part of the itinerary set out in the ticket. Carrier is not responsible for changes, errors or omissions either in timetables or other representations of schedules.