If you have a balance in your number, but you are prompted that "the balance of the number is insufficient" when you change the package, it may be that the system has not deducted the phone bill in time, or the balance of your number is not enough to deduct the arrears, so I suggest you pay attention and pay in time; If you are handling a 2G/3G upgrade 4G package, the following situations will also affect your handling:

1, the original 3G contract is renewed and has not yet taken effect;

2. 3G network card, one card with dual numbers;

3, port number transfer users (Tianjin, Hainan, Jiangxi, Hubei, Yunnan only);

4. Group customers and industry application users;

5, for the national unity or provincial contract plan;

6. There are other restrictions that cannot be lifted;

7. The online time is less than 6 months (excluding);

8, downtime, account cancellation, blacklist, etc.;

9. From the last day of the end of the month to the beginning of the month, it may affect your use of the package to change your business.

If you can't handle the above reasons or the above situations, it is recommended that you contact the customer service at your place of origin for details.

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