Róbert Marshall, the chairman of the committee, said that "People wanted to know on what legal grounds the ban was taken, but no one could answer it. They said this decision was taken by foreign sources." The committee has asked for more information from the companies, to prove that there were legal grounds for such a ban. Marshall added that it was the committee's opinion that Visa and Mastercard's operating licenses be "seriously reviewed," reports The Reykjavik Grapevine.

Datacell, the company handling credit card donations for WikiLeaks, has already declared that it would file legal action against Visa and Mastercard.

PostFinance, the banking arm of the Swiss Post, found itself under investigation as well for potentially breaching secrecy laws by publicly disclosing that it has closed Julian Assange's bank account, reports AFP. "We are investigating if, in relation to the Postfinance press statement, there has been punishable action," Hermann Wenger, examining magistrate of the Bern-Mittelland region, told Sonntags Zeitung.

As previously reported, the Wau Holland Foundation also initiated legal action against PayPal, resulting in PayPal agreeing to release the blocked funds. In an interview with Der Spiegel today, Hendrick Fulda, a board member of the foundation, said that "Every new publication by WikiLeaks has unleashed a wave of support, and donations were never as strong as now. More than €80,000 was contributed in one week via PayPal alone. We will have to see what impact the removal of PayPal has on our incoming funds."