"It's horrible I did email asking how Toffee was doing.
"The email which I got back from them where the grandmother had written: 'the best thing about Toffee is when I wake up I can hear my granddaughter laughing with him'.
"I took that as a very good sign he had settled in well."
Ms Poon said Rescue Cats and Kittens Brisbane informed her that Toffee had been on the streets for years.
"I am really, really upset about it."
Ms Poon originally wanted to have Toffee moved to Hong Kong with her but unfortunately he now has a chronic respiratory condition and other complications caused by living on the street, which meant it was no longer safe for him to fly.
Ms Poon would return to Brisbane in the new year to check on Toffee and make a plan on what to do with him.