If the order on Ctrip is deleted, will there be no SMS?

After deleting an order on Ctrip, I usually send you a short message to cancel the order and tell you to return the money to the original account in a few days. However, I met once when I didn't send a message. I didn't send a message, and I didn't pay back the money for half a month. At that time, I called Ctrip customer service and said that the bill had been deleted, but the backstage did not confirm it in time, so there was no text message and no refund. Three days later, I paid back the money.