How much will Unicom's arrears be shut down?

Unicom users are divided into two types:

1 is a prepaid user. Pay first and then use. If there is no money in the card, it can't be used.

The other is a post-paid user, who uses it first and then pays. Unicom also gives users a credit line for a period of time, even if the user's phone bill exceeds the limit within a certain period of time, it is not convenient to pay. Within the credit limit, it can be used as a phone bill, and there will be no arrears of downtime. Of course, if the credit limit is exceeded, it will stop. Generally, Unicom supports this card for up to two months. If it is not paid within two months, it will stop.