Because of changes in your travel plans, you must modify or cancel your flight. However, flight cancellations might be stressful at times. Do not worry! According to the British Airways cancellation and refund policy, you can easily cancel your reservation and receive a reimbursement. If you cancel within 24 hours of booking, British Airways will waive the cancellation cost.
https://flightcancellationpoli....cy.com/british-airwa

British Airways Cancellation Policy | Cancel Flight

Get all information About British Airways Cancellation Policy .And Get back your refund if you can cancel your flight within a day of booking,