Article 21U.K.
Where the Member State of refund requests additional information, it shall notify the applicant of its decision to approve or refuse the refund application within two months of receiving the requested information or, if it has not received a reply to its request, within two months of expiry of the time limit laid down in Article 20(2). However, the period available for the decision in respect of the whole or part of the refund application shall always be at least six months from the date of receipt of the application by the Member State of refund.
Where the Member State of refund requests further additional information, it shall notify the applicant of its decision in respect of the whole or part of the refund application within eight months of receipt of the application by that Member State.