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"The boy needs an orthopedic surgical review urgently to properly assess the deformity and pain he is experiencing," said Dr Barri Phatarfod from Doctors for Refugees.

"That this young boy could be operated upon and not have post-op follow up, especially in light of his ongoing symptoms, would be unthinkable anywhere else."

Refugee lawyer George Newhouse told BuzzFeed News that Erfan is "growing quickly and his arm keeps deforming". He says immigration minister Peter Dutton should step in.

"This young boy requires urgent medical attention, I am hoping that the minister will show some compassion and decency," said Newhouse.