https://support.google.com/admanager/thread/322838826/—does-qatar-have-fully-refundable-tickets

https://support.google.com/admanager/thread/322838826/%EF%BC%AB%EF%BC%AE%EF%BD%8F%EF%BD%97-%EF%BC%A6%EF%BC%B5%EF%BD%8C%EF%BD%8C-%EF%BC%A4%EF%BD%85%EF%BD%94%EF%BC%A1%EF%BC%A9%EF%BC%AC-%EF%BC%8Ddoes-qatar-have-fully-refundable-tickets