A top fundraiser for Britain's ruling Conservative party has resigned for telling undercover reporters that they could have access to Prime Minster David Cameron in exchange for big cash donations.

Party co-treasurer Peter Cruddas denies the allegations published by London's Sunday Times newspaper, describing his comments as “bluster.”

He says he could not offer anyone access, nor would Mr. Cameron consider meeting with anyone as a result of a donation. He said he decided to resign to make that clear beyond any doubt.

Cruddas also says he did not consult with any senior Conservative party members before meeting with the reporters.

The Sunday Times released what it says is a secretly recorded video in which Cruddas tells reporters posing as financiers that they could have an audience with Mr. Cameron for a $400,000 donation.

He said this would include a private dinner with the prime minister where they could be free to ask him anything they wanted.

Prime Minister Cameron has not yet reacted to the newspaper story. He promised curb lobbying by wealthy business interests and financiers when he took office two years ago.