Exclusive: Sasan Ghandehari’s partnership with religious foundation raises questions about past dealings with republic criticised by Nigel Farage

Nigel Farage’s newest billionaire donor was in business with a powerful Iranian religious foundation under the authority of the country’s supreme leader, raising questions about his past dealings with the hardline republic.

Hossein Ghandehari, also called Sasan, was little known in the UK until he pledged to give millions to Reform UK this summer and donated £50,000 to Farage to cover the cost of two passes for the Davos World Economic Forum.

Party given additional penalty by Electoral Commission for not paying original fine on time

Reform UK has been fined more than £2,000 for failing to declare it was the publisher of campaign material seen by voters – including an additional penalty for failing to pay on time.

Nigel Farage’s party was sanctioned by the Electoral Commission after four items of elections material were missing an “imprint” – a declaration of the publisher so voters know who has paid for the promotional message.

Exclusive: Admission from James Orr to undercover reporter came three months before party was given £72m

A senior Reform UK official raised questions about whether major donations from billionaire backers Christopher Harborne and Ben Delo would be legal under the proposed new foreign donors cap three months before they gave £72m to the party.

James Orr, who was then Reform UK’s head of policy and a Cambridge professor, discussed potential difficulties around future donations from Harborne and Delo in undercover footage captured by the investigative reporting group Verbatim.