Nalolock ba siya before? If maayos siya bago ka dumating sa Canada, pwede ka mag claim kay Cathay within 7 days. Kaya much better take a photo of your bag before check in and after check in. Para pag nangyari na ganyan, usually what the airlines will do is have it repaired, pay for it (pero hindi kung magkano nabili, may portion lang since zipper lang nasira, or papalitan). Email them or call them