Giant US financial intermediary Visa is partly relying on the Gillard government's claims that WikiLeaks acted "illegally" to justify its ongoing financial blockade of the whistleblower and media outlet, new material obtained by WikiLeaks has revealed.

WikiLeaks's campaign against the illegal blockade, which has strangled the organisation of more than 90% of its funds, has suffered a setback this week after the European Commission declined to investigate the blockade (specifically, of the company DataCell, which WikiLeaks had been using) despite the European Parliament resolving last week that the Commission should seek to prevent the "arbitrary refusal of payments by credit card companies".