Foreign Secretary James cleverly said Britain and Iran were discussing a £400m UK debt, but the talks had nothing to do with the arrest of Nazanin Zaghari-Ratcliffe.
Britain owes itself to not delivering the tanks Iran bought in the 1970s.
Ms. Zaghari-Ratcliffe, a British-Iranian national in an Iranian prison, believes she has imprisoned as a lever for debt.
The Prime Minister said; “There are two completely different issues.
Ms. Zaghari Ratcliffe case has made headlines again in recent weeks after she was sentenced to another year in prison, a few weeks after her five-year sentence ended. He was first jailed in Tehran in 2016 on espionage charges, an indictment has denied.
Her husband, Richard, maintains she is being used as a bargaining chip in the dispute over the unpaid debt, as well as leverage in talks over the nuclear deal between Iran and world powers.
On Sunday, Iranian state TV suggested the UK had paid the £400m debt – but the UK government said nothing had changed.
When asked if progress was being made in the negotiations, Mr. Charley said: “The legal process is also ongoing. Iran’s recent withdrawal from this legal process has certainly delayed everything.
“We see how to solve a problem that has been going on for decades.
“Our weekend report linked this work to the arbitrary imprisonment and detention of two British citizens, which I consider to be completely inappropriate, separate matters, one much earlier than the other.”
The imprisonment of dual citizens in Iran “should have nothing to do with the decades-old tank dispute,” he said.