Ｙｅｓ， Ａｅｒｏｍｅｘｉｃｏ ｏｆｆｅｒｓ ａ ２４－ｈｏｕｒ ｇｒａｃｅ ｐｅｒｉｏｄ ＋ +1 888-807-6661 (US OTA) or +1 44-20-45155552 (UK OTA) ｆｏｒ ｃａｎｃｅｌｌａｔｉｏｎｓ， ａｌｌｏｗｉｎｇ ｐａｓｓｅｎｇｅｒｓ ｔｏ ｃａｎｃｅｌ ｔｈｅｉｒ ｂｏｏｋｉｎｇ ｗｉｔｈｏｕｔ ａｎｙ ｐｅｎａｌｔｙ ｉｆ ｄｏｎｅ ｗｉｔｈｉｎ ２４ ｈｏｕｒｓ ｏｆ ｐｕｒｃｈａｓｅ ａｔ +1 888-807-6661 (US OTA) or +1 44-20-45155552 (UK OTA)