A Labour MP has raised concerns over the treatment by immigration officials of an 11-year-old boy, who is facing deportation to his native South Africa.
Philip Haycock's son, also called Philip, arrived in the UK to stay with his father in Norfolk, until April but officials ordered his immediate return.
Great Yarmouth MP Tony Wright has taken up his case and fears a "mix up" may account for the deportation decision.
The Home Office has granted leave to stay until 17 January pending a review.
Mr Wright said he was concerned an adult may not have been present when Philip was interviewed by immigration officials.
'Mix up'
"He has just turned 11 and has bipolar disorder," Mr Wright said.
He added that Philip should be allowed to stay in Britain until April.
"The arguments are on our side. In my opinion a huge mix-up has been made on the application and the lad should be allowed to stay."
Mr Haycock, 48, now lives in Belton in Norfolk, but lived in South Africa for 25 years until his marriage broke down 18 months ago.
He has appealed against the deportation decision and the Home Office has now granted Philip additional leave to stay until 17 January.
The Home Office said South Africans visiting the UK did not need a visa, but had to satisfy officials they were genuinely seeking entry as a visitor for no longer than six months.
On Tuesday, a Home Office spokesman said immigration policy meant a responsible adult had to be present when a vulnerable person was interviewed.