There is official customer service. Generally, there are the following methods for relatives to check bills.
1. Relatives Card Bill Inquiry Method 1. Call the Relatives Credit Card customer service hotline, operate through voice prompts or transfer to manual customer service, provide your ID number, and ask customer service staff to help you inquire. 2. Log in to the official website of Relatives Bank, click "Credit Card", select "Credit Card Inquiry", fill in the real information and submit the inquiry. 3. WeChat query: Follow the "China Construction Bank" WeChat official account, then bind your credit card, and you can choose to query "Bills Issued", "Bills Not Issued", and "Bill Details". 4. Counter inquiry: Bring your ID card and credit card to any branch of China Construction Bank and ask the staff to help you inquire.