Football Federation Australia has denied any wrongdoing amid allegations its 2022 World Cup bid team paid discredited former FIFA vice-president Jack Warner almost half a million dollars in the belief it would secure his vote.

British tabloid the Daily Mail reported on Sunday the allegations have been made by an Australian whistleblower to Michael Garcia, the American lawyer leading FIFA's investigations into claims of corruption in the bidding for the 2018 and 2022 World Cups.

Missing half-million: Discredited former FIFA vice-president Jack Warner. Credit:Reuters

Garcia will reportedly visit Australia in the next few days to meet people who worked on Australia's bid.

The whistleblower alleges that while Australia paid $462,200 into an account controlled by Warner in 2010 to upgrade the Marvin Lee Stadium in Macoya, Trinidad, it was always intended to influence his vote.