How to cancel Unicom card? I used an ID card and didn't sign a contract. There is still a balance in this. How can I return it?

Unicom cards are divided into prepaid cards and post-paid cards.

1. If you don't use the prepaid card, you don't need to cancel. As long as there is no money in the card, it will not be recharged, and it will be automatically cancelled after three months, and the balance will not be refunded.

2. If you don't use a post-paid card without a contract period, you need to bring a valid ID card to the business hall to cancel the account. The deposit can be refunded when the account is closed.

1) Personal customer's valid ID card: provide the original personal valid ID card (if the agent entrusts others to handle it, the agent shall also submit the original valid ID cards of the client and himself).

2) Valid identification of the company's customers: provide the company's letter of introduction/certificate (with official seal) and the original ID card of the manager or other valid identification documents.