After the completion of tickets, cancellation passenger has the right that they can demand with the airline for a refund. And it is necessary for the passengers to fill out the refund application form. If a refund is not credited within a given time of 2 weeks or 21 days then the passengers have to resend the request form to the airline. British Airways cancellation refund policy takes fare decisions to their travelers.
https://airlinespolicy.com/cancellation-policy/british-airways-cancellation-policy/
