I have successfully handled the SMS receipt business. Why can't I receive additional information when I use it?

If the SMS receipt service fails to receive additional information, please confirm whether you can receive the status report and additional information at the beginning of each day, and you can only receive the status report in the afternoon or evening without additional information. If that's the case, it's because there are many short messages sent in one day, and additional information provides about 100 pieces of additional information every day. This will happen if more than 100 messages are sent in one day. SMS receipt refers to the business that customers receive the receipt message immediately after sending the message with China Telecom's mobile phone. The contents of the receipt include the status information and additional information of whether the receiver successfully received it. The length of additional information is limited to 44 characters (including punctuation marks), and the content involves cultural entertainment, life health, practical knowledge, hot events and other fields. It is suitable for China Telecom Tianyi mobile phone users, and can be handled through SMS, Huan go website and handheld business hall. For more service benefits, click on "official website" customer service 220 below to answer your questions.