The 7,000 limit of Bank of Communications credit card is mainly divided into three levels: 1. Regular card, gold card and platinum card. 2. The limit of gold card is relatively low, generally around 10,000 yuan. 3. The limit of platinum card is generally above 50,000 yuan. The credit card limit is determined by the bank based on the applicant's financial situation and credit situation. It will take into account many factors, such as the customer's work nature, education, income, personal stability, personal social credit, use of other financial products, etc. aspects. If you are not satisfied with your credit card limit, you can apply for a temporary limit adjustment or long-term limit increase based on your usage after using it for a period of time.