Fawcett said in May that he had left Nathan, about 7 years old, in New Zealand when he went to the Philippines, but the dog was abandoned by the people he had entrusted him to.
He had been saved from euthanasia by his microchip, and, after an anxious and stressful time, Fawcett was able to get him to the Philippines.
Having decided to return to New Zealand with wife Che, he was "shocked and dismayed" to learn that the process of bringing Nathan too would take up to eight months, and cost about $15,000.
"This is far beyond my means, as I only receive 50 per cent of my married NZ superannuation entitlement because I am living overseas," he said.
"The alternatives are to leave him here, but believe me, the Philippines isn't a good place for a dog, or have him put to sleep. Having rescued Nathan from an abusive owner when he was nine months old, there's no way I'm going to abandon him now."