本日Credit Card Charge formを郵送しましたが、明日までに届かない恐れがありますので、pdfでも添付したします。ご迷惑をおかけしますが、よろしくお願いします。
Today I sent the Credit Card Charge form to you but I also attached it as a pdf because there is a possibility that it won't be delivered by tomorrow. I apologize for any trouble caused. Thank you very much.