I got a short message from JD.COM for no reason, but I didn't buy anything.

This situation belongs to someone placing an order in JD.COM. After payment, I found that the consignee had filled in the wrong mobile phone number and applied for a refund. This phone number happens to be yours. For the benefit of the consignee, JD.COM can notify the consignee of refund by SMS, but the actual operator will not receive SMS notification. Only account messages will be notified.