"The reasons why the recharge card cannot be recharged may be as follows: 1. Check whether the recharge method is correct, and you can call the national recharge hotline 11111 or log in to the online business hall/recharge; 2. Check whether the account password of the recharge card and the recharge mobile phone number are correct; 3. If the system is upgraded or busy, it may cause the recharge card to be temporarily unable to recharge. I suggest you try it several times. 4. If you recharge during the busy period (25th of each month-5th of the following month), it is suggested that you can notice the account within 48 hours. If the above reasons are not solved, it is recommended to call Unicom's customer service hotline for specific details. "