The telephone number of Bank of China Credit Card Center is: 400-66-95566. This is a service hotline specially set up for credit card customers, providing multiple services such as enquiries, loss reports, consultations, and complaints. Just select the corresponding service according to the voice prompts. If manual service is required, follow the prompts and wait for the customer service staff to answer. Customer service staff will provide customers with professional services, answer customer questions or handle customer needs. It should be noted that service time and specific operations may vary depending on region, card type and other factors. It is recommended to first check the official website of Bank of China or consult local branches to obtain more specific service information and operation guides. In short, calling the Bank of China Credit Card Center can solve credit card-related problems conveniently and quickly. It is one of the important measures taken by Bank of China to provide customers with high-quality services.