Citibank credit cards can generally be applied in first-tier cities. You can log on to Citibank official website to see if you have your own city. You can also apply in the following ways:

I. official website's application:

1. Log in to Citibank official website and click "Credit Card" service.

2. Then select the type of credit card you want to apply for and click Apply Now.

3. Fill in personal information according to the prompts.

Second, WeChat application:

1. Pay attention to the official service number of Citibank Credit Card.

2. Click "Apply Now" in the menu bar below the official WeChat account, and select "I want to apply for a card".

3. Then click "Citibank Credit Card Online Application" and fill in the relevant information.