Can telecom points be exchanged for telephone charges?

You can exchange phone bills by SMS. Edit the short messages "DHHF 10", "DHHF20", "DHHF30" and "DHHF50" (case-insensitive) and send them to 1000 1688 (this short message is charged according to the normal short message) to exchange the corresponding phone charges. 1000 is RMB 10, 2000 is 20 yuan, 3000 is 30 yuan, and 5000 is 50 yuan phone bill (you will receive the phone bill within 4 hours). Note: Exchange is only supported on 5th-3rd1day of the current month, and not at other times.