 Nyorai mberi kweiyi ndima - Costello akagadzwa sa CEO weWorld Vision Australia musi wa24 Mbudzi 2003. Sezvo akapedza nguva yakawanda yebasa rake achinyanya kufunga nezvenyaya dzemuno nedzomunyika, Costello akati anofarira mukana wekutarisa nyaya dzenyika dzakawanda. Mugore rake rokutanga rakazara mubasa racho, Costello akava chiso chokupindura kweAustralia kuTsunami yeBoksing Day. Costello akatungamirira basa rokuunganidza mari, uye World Vision Australia yakaunganidza mari inopfuura mamiriyoni 118 nokuda kwezvirongwa zvokuyamura nokugadzirisa. Munguva yaCostello, sangano rakakura kubva pakupa mari kumapurojekiti mazana mana nemakumi masere anobatsira vanhu mamirioni gumi nemana, kusvika kumapurojekiti ekuvandudza eWorld Vision anodarika mazana masere anobatsira vanhu vangangosvika mamirioni zana pasi rose kusanganisira muAustralia. 