How to redeem China Unicom points in Xi'an area by sending text messages and convert them into phone charges?

The China Unicom SMS points redemption password is:

Edit "JFCZ# Telephone Charge Amount" and send it to 10010. You can also edit "JFDH# Telephone Charge Amount" and send it to 10010.

For example: if 500 points are exchanged for 5 yuan of phone bill, send "JFCZ#5" or "JFDH#5" to 10010.

The currently redeemable amounts are 5 yuan, 10 yuan, 20 yuan, 30 yuan, 50 yuan, and 100 yuan.