An application from Libertas for funding as a political party at the European level has been put on hold.
The European Parliament is authorised to grant funding to parties which satisfy rigorous requirements to show their European qualifications.
An Estonian MP listed as backing Libertas's application now insists that he had not signed any document.
If it is confirmed that the MEP did not put his name to the document, Libertas would no longer fulfil the requirement of having the support of politicians in at least a quarter of the EU member states.
The regulation states that the party must, among other requirements, 'be represented, in at least one quarter of Member States, by Members of the European Parliament or in the national Parliaments or regional Parliaments or in the regional assemblies, or it must have received, in at least one quarter of the Member States, at least three per cent of the votes cast in each of those Member States at the most recent European Parliament elections.'
Liberal MEP Andrew Duff has written to the President of the Parliament with an affidavit from Igor Grazin MEP, in which he says he never signed any such documents, and that any claims he had done so were utterly untrue.
Libertas listed the 'support' of eight politicians from seven of the 27 EU member states as part of its application for recognition and funding.
A spokesman for Libertas has insisted that they have been up-front and honest.
He said Mr Grazin signed the document in their Brussels office in the presence of Declan Ganley and others, adding that the party is prepared to provide an affidavit.
He said that if the Estonian MEP had a change of mind there is nothing they can do about it.
However he said that he was confident that the matter was only a minor hiccup.
Libertas has also said that it could get extra signatures to support its application if necessary.
