What is required for a marriage declaration of a girl by a judge in a neighboring country to be valid, after her parents refused to marry her?

A guardian is not permitted to prevent his daughter from marrying a suitable partner according to Islamic law. If he prevents her without a valid reason, she has the right to refer her case to a Sharia (definition) judge to have him marry her or appoint someone to do so. However, this particular situation is ambiguous and unusual: the girl referred her case to a judge in a country other than her own, she got married without the judge verifying the guardian's obstruction, and the marriage contract was conducted over the phone. Therefore, the girl is advised to follow the correct procedure to complete her marriage, and the questioner is advised to stay away from this ambiguous marriage.