"I am in shock after hearing this story," Pattharamon Janbua was quoted as saying by Australia's Fairfax Media about the latest revelation.
"I need help from anyone who can bring my girl back to me as soon as possible," she said. This news makes me sick. I am worried about my baby girl."
The 21-year-old Thai woman who gave birth to in vitro fertilised twins said last week that the Australian couple refused to take the boy after learning that he was born with Down's syndrome.
DPA