I'm really frustrated that my phone suddenly can't make calls. I tapped into the SIM card settings and tried switching to 5G, but it always stays on 4G. No matter how I try, I can't switch to 5G. I can't call my dad; the calls either don't go through or he can't answer. It was fine last month, but this month it suddenly stopped working. I checked the call log, and the last missed call was on March 24th. After that, there have been no missed calls on SIM card 1. Currently, I can only receive text messages. I tried using an old phone to make calls, but it also didn't work—calls disconnected on their own in less than 10 seconds. Then I switched to another old phone, but still no luck. Finally, I asked the online customer service of China Mobile. The representative said my card's service status is normal and asked if I tried using another phone. I said I did; I even asked 10086 to call me, but it still didn't go through. The customer service rep then told me to go to a physical store to have the card checked, but I found out there's no China Mobile store in our town. There is one in the county, but I don't have time to go because I'm busy farming. So I chose the second option—online card replacement, which cost me 8 yuan in handling fees. Once the new card arrives by mail and I put it in my phone, it should work.

Also, yesterday JD Express sent me a message saying I have a package at the convenience store. I went to the store but couldn't find it. I asked the delivery guy where he left it, and he said he put it on his vehicle. He also said he couldn't reach me by phone, but today he called me and delivered the package.