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最好的開票期限當然就是在您訂位完成、旅遊行程與住宿安排妥當、簽證、假期OK,就該開票了。
避免票價及稅金異動,確保您的權益,建議您於訂位完成後,立即付款開票。友時在旺季貨機位較滿時,航空公司會做清艙的動作,可能在您沒有注意的同時,機位已經被取消。