Switzerland's victory might be cancelled. Because of this, overwhelming access from Korean users (which was detected by IP address) caused problems and FIFA eventually denied Korean access. FIFA altitude ban FIFA attempted to address the issue of extreme altitude in May 2007, ruling that no future international matches could be played at an altitude over 2500 m (8200 ft). The FIFA altitude ban would most notably have affected the national teams of Andean countries. Under this proposal, Bolivia would no longer be able to play international matches in La Paz (3600 m), Ecuador would be unable to play in Quito (2800 m), and Colombia could no longer play in Bogotá (2640 m). However, FIFA soon backed away from the proposal after international condemnation, and under political pressure from the CONMEBOL countries, first extending the maximum altitude to 2800 m (9190 ft) in June 2007, which made Bogotá and Quito viable international venues once again, and then waiving the restriction for La Paz in July 2007. Controversy over the 2022 World Cup selection and allegations of corruption In May 2011, after Qatar was selected to host the 2022 World Cup, allegations of bribery on the part of two members of the FIFA Executive Committee were tabled by Lord Triesman of the English FA. These allegations were based on information from a whistleblower involved with the Qatari bid. FIFA has since opened an internal inquiry into the matter, and a revote on the 2022 World Cup remains a possibility if the allegations are proven. FIFA president Sepp Blatter has admitted that there is a groundswell of popular support to re-hold the 2022 vote won by Qatar. In testimony to a UK parliamentary inquiry board in May 2011, David Triesman, Baron Triesman alleged that Trinidad and Tobago's Jack Warner demanded $4 million for an education centre in his country and Paraguay's Nicolás Léoz asked for an honorary knighthood in exchange for their votes. Also, two Sunday Times reporters testified that they had been told that Jacques Anouma of the Ivory Coast and Issa Hayatou of Cameroon were each paid $1.5 million to support Qatar's bid for the tournament. All four have denied the allegations. Mohammed bin Hammam, who played a key role in securing the games for Qatar, withdrew as a candidate for president of FIFA in May 2011 after being accused of bribing 25 FIFA officials to vote for his candidacy. Soon