Joke Collection Website - Blessing messages - How does Telecom use SMS to inquire about last month's consumption bill?

How does Telecom use SMS to inquire about last month's consumption bill?

Hello, telecom mobile phone users edit the short message instruction "103" on this machine and send it to 1000 1, 1000 1, and reply the bill information of last month with a short message.

Enquiry method for other months: the local editing short message instruction "104#6-digit year and month" is sent to 1000 1,1to reply to the historical billing information.