One machine with multiple cards to query short messages.

You can log in to Unicom official website to check the detailed list of Internet traffic, and see which time period has more traffic, and judge according to your usage at that time. Inquiry method: you can log in to the online business hall/click Home Self-Service > Call Charge > Detailed List Inquiry.

& gt Detailed list of Internet traffic.

20 yuan 300MB traffic packets generally have two effective ways, one is to take effect immediately, and the other is to take effect the next month 1. If the traffic package that comes into effect on the following month 1 has not yet come into effect, it may be charged according to the standard traffic charges outside the package card.

The specific data shall be subject to what needs to be checked in the inquiry. You can send a short message CXLL to 100 10 to inquire about the remaining traffic and traffic usage, or you can call the hotline 100 10 to inquire about this situation.