Arron Banks, who used to be one of the UK Independence Party’s biggest donors, is demanding that Ukip pays him £200,000 for call centre and other services he provided for free.

Mr Banks, who donated £1 million to Ukip before the last general election, has submitted the invoice after he fell out with senior figures in the party and his membership lapsed.

Mr Banks said he had decided to invoice the party for the cost of providing call centre and membership services after the party had effectively suspended him.