Article 15 allows an alleged breach to be brought, depending on the case, to the airport managing body or the relevant air carrier. If the response is unsatisfactory, a complaint may be submitted to the enforcement body designated under Article 14 or another competent body of the Member State.
A clear complaint contains the booking, flight number, departure or destination airport, reported assistance need, time and place of arrival, assistance promised and assistance actually provided and the specific consequence of the incident. For a damaged mobility aid, add the condition at handover, photographs, repair records and replacement receipts.
Keep the original notice, replies, receipts and witness names in chronological order. Article 16 requires Member States to establish effective, proportionate and dissuasive sanctions for breaches. The competent body in a particular case and any additional claims depend on the flight and the applicable national rules.