“Judge Babai upholds sentence of 1+1 year, Court 54. No summons date for jail yet,” the campaign wrote.
Zaghari-Ratcliffe was given a second prison sentence and a travel ban in late April for spreading propaganda against the regime. He was first detained at Tehran airport in April 2016 after going on holiday to see his family with his daughter.
He was accused of allegedly working with organizations trying to overthrow the Iranian regime and was later convicted and sentenced to five years in prison.
Zaghari-Ratcliffe and her employer, the Thomson Reuters Foundation, have repeatedly denied the espionage charges against them.
Following the latest setback in his case, Zaghari-Ratcliffe has asked to speak to British Prime Minister Boris Johnson, in the hope that he will secure his release with the Iranian delegation traveling to Glasgow for COP26.
The Free Nazanin campaign tweeted on Saturday, “Nazneen has asked to speak to the PM – he has invited the Iranian President to Glasgow for #COP26 next month – it is up to him to sit down with the Iranians and finally get it over.” It’s time.”
Zaghari-Ratcliffe was granted British diplomatic protection in 2019 and was named a prisoner of conscience by Amnesty International.
In 2019, his supporters said he had been transferred to a mental ward of a hospital in Tehran and was being denied visits to his father.
CNN’s Sarah Dean, Emmett Lyons and Lauren Said-Moorhouse contributed to this report.