What text messages will you receive next month?

Automatic archiving of telecom traffic: when the traffic exceeds the cost and reaches 20 yuan, the bill will be collected free of charge until the user uses 150M. After users use more than 300M, if the excess fee reaches the bill of 30 yuan, they will be charged free of charge until users use 300M. After users use more than 300M, if the excess fee reaches the bill of 50 yuan, they will be charged free of charge until users use 800M m.

The flow automatically depends on the gear. If the flow exceeds, it will automatically approach the next gear.

The flow fee of 10 yuan /60M is insufficient. 20 yuan charges according to the actual situation. When the traffic fee reaches 20 yuan, it will be collected free of charge and used until 150M. That is to say, 10 yuan /60M exceeds the flow, and only 20 yuan is needed within 150M.

The next month is of course the traffic package 10 yuan /60M.