UK enters talks in Tehran over £400m debt ‘We are not even insisting on interest. Otherwise it would be billions,’ says Iranian diplomat Nazanin Zaghari-Ratcliffe could be home for Christmas if UK hands £400m to IranTehran has signalled it might accept the payment in Covid jabs and medicines, the charity worker's husband Richard Ratcliffe told the Sunday Mirror Iran says UK is discussing how to repay £400m debtAmbassador says British officials visited Tehran last week for talks on historical debt from 1970s arms sale