Football's world governing body FIFA opened seven additional ticket collection centres at Brazilian airports on Sunday as the countdown to the 2014 FIFA World Cup continued.
The airports are now able to provide tickets purchased via the FIFA.com website to customers.
Meanwhile, the bidding process for the 2022 World Cup came under renewed scrutiny after claims by a British newspaper it had received "hundreds of millions" of documents which allegedly revealed disgraced former FIFA executive committee member Mohamed Bin Hammam made payments to football officials in return for votes for Qatar.
"Our files show beyond doubt that the bid committee was working hand in hand with bin Hammam in the years before the bid and that they worked together to win support for their campaign," said Heidi Blake of the Sunday Times.
The Sunday Times said a "senior FIFA insider" had provided "hundreds of millions of emails, accounts and other documents" detailing payments totalling 5 million (m) US dollars that Qatari official bin Hammam allegedly gave football officials to build support for the bid.
Bin Hammam was a member of FIFA's executive committee for 16 years and key power broker until being expelled in 2012 for financial corruption during his time as Asian Football Confederation president.
The Qataris have reportedly denied any wrongdoing and in a statement, the bid committee said Bin Hammam had no association with them.
Several football administrators including the chair of the English Football Association have called for a thorough investigation of the allegations.
FIFA declined comment on Sunday about the reports, which revived calls for the 2022 World Cup vote to be re-run.