In the case of damage, the person entitled to delivery must complain to the carrier forthwith after the discovery of the damage, and, at the latest, within seven days from the date of receipt in the case of checked baggage and fourteen days from the date of receipt in the case of cargo. In the case of delay, the complaint must be made at the latest within twenty-one days from the date on which the baggage or cargo have been placed at his or her disposal.