Unicom mobile phone card cannot be recharged, and recharging failed.

The reason why the rechargeable card cannot be recharged is as follows: 1. Check whether the recharge method is correct. You can call the national recharge hotline 100 1 1 or log on to the online business hall /02oec/ to recharge; 2. Check whether the account password and recharge mobile phone number of the recharge card are correct; 3. When the system is upgraded or busy, the rechargeable card may not be recharged temporarily. It is recommended to try several times. 4. If recharging is carried out during busy hours (25th of each month-5th of the following month), it is recommended to notify the account within 48 hours.