Hello : I have changed my plan from 3G to 4G since Nov 11. However, the internet speed is very slow. The download is only 1.92, upload is 0.22. Any suggestions?
Hello , I have a iPhone 11. Recently I found out that sometimes there are no sounds for incoming calls. It causes me missing some important calls. When it happens, the phone is not in silent model either side volume bitten is not in silent . Please...
Hello, I have $15 plan. According to the plan, the incoming calls and toll-free number are free. However, from my usage history, all these calls were accumulated to 100 minutes. How to correct these errors?Thanks
