1. If, in the course of the recovery or notification procedure, the administrative penalty and/or fine and/or underlying claim is challenged or appealed by the service provider concerned or by an interested party, the cross-border enforcement procedure of the penalty and/or fine imposed shall be suspended pending the decision of the appropriate competent body or authority in the requesting Member State in the matter.

Any challenge or appeal shall be made to the appropriate competent body or authority in the requesting Member State. The requesting authority shall without delay notify the requested authority of the contestation.

2. Disputes concerning the enforcement measures taken in the requested Member State or concerning the validity of a notification made by a requested authority shall be brought before the competent body or judicial authority of that Member State in accordance with its laws and regulations.