10086 sent me a message saying that the surfing assistant would send 200M traffic when it was turned on, so I did what it gave me. Later, I checked the phone bill.

My previous traffic package was:10m+10 RMB 70M+70m+6 yuan 70m (3G only) =16 RMB150m (2G or 3g only)+70m (3G only).

But I didn't pay attention to when to use 3G network and when to use 2G network, because the signal showed G, E and H for a while. I looked it up on the Internet and found it was a 3G network when it showed H. Because I didn't think so much at all, I thought I could use the traffic of 150+70=220M indefinitely. Results I received the message that the balance of 10086 was insufficient the day before yesterday, and found that more than 30 yuan of traffic fee was deducted. Because I used a total of 2 10M, of which 3G traffic is only a dozen meters, and the rest 180M is 2G traffic.

But this morning, I received a message from 10086, saying that if you use more than 200 m, you can open the surfing assistant service for free, and then get 200 m of traffic for free. I opened it without thinking. Then I found that the previously deducted traffic fee was replenished. . . . . Sweating. . . . I just called 50 yuan yesterday, and the balance is only 53 yuan. . . There is still a large balance in 87 yuan. . . . . . . . . . 10086 also called me and told me that I was given 200 M of traffic because I started that surfing business, so I had exceeded the paid traffic of the package and became free. They wanted to give it back to me. . . . . . . . . . . . . That really scared me. . . . . When did mobile become so considerate and humanized? . . .

PS: I traveled in Shenzhou, Changsha, Hunan.

I wonder if other brands in other regions have the same discount. . .