If, due to unexpected circumstances beyond your control which fall within the terms and conditions of this cover, your trip cannot be completed within the period of insurance outlined in your policy schedule, cover will be extended for you at no extra cost for up to 30 days. If the extension is for medical reasons, this also applies to one person travelling with you, as long as AIG authorizes them to stay with you in advance. All requests for more than 30 days must be authorized by AIG.