I opened the JD.COM White Strip, but I didn't use it. Will there be a charge? What does this short message mean?

First of all, if JD.COM IOUs are issued, there will be no charge without IOUs (that is, borrowing money for consumption). The text message in this picture has these three messages: First, you have opened the JD.COM White Strip; Second, if white stripes are used, the invoice date; The third is the repayment date after use, and the time logical relationship between the repayment date and the billing date.