How to sell calling cards online?

The cancellation steps of telecom calling cards are as follows:

1. Enter the APP query processing page of the telecom business hall, and click the processing option.

2. In the list on the right, click the option to disassemble the machine.

3. Enter the mobile phone number to be cancelled, fill in the personal information, and click the option to confirm the disassembly.

Unicom calling card cancellation steps are as follows:

1. Go to the homepage of China Unicom APP, and click Service Options.

2. In the query page, click the option to cancel the account.

3. Click the option to cancel the account at the bottom of the entrance.

4. Fill in the mobile phone number and personal information to successfully log out.

The cancellation steps of the mobile phone card are as follows:

1. Go to the classification page of China Mobile APP and click the service option.

2. In the list on the right, click the option of the nearby business hall.

3. In the list of business halls, select the nearest business hall and bring your personal ID card and mobile phone card to cancel.