- Contact your accommodation, flight, and/ or tour company and ask for a refund which will be either a 'Refund Advice' document or written proof that they have refused to refund you.  - This document is essential since failing to obtain it can considerably delay the processing of your claim.  Proof that supports your cancellation reasons. For instance, this can be an email from the airline stating that a natural disaster has canceled your flight, a hospitalization record for a sick family member, or a letter from your accommodation provider saying rioting is taking place.