Credit card of China Merchants Bank is less than RMB 654.38+0,000, gold card is less than RMB 654.38+0,000-50,000 (if the city only has gold card, the credit line is between RMB 50,000-50,000), and platinum card and diamond card are more than RMB 50,000. The bank will temporarily increase the credit line according to the cardholder's consumption situation. In addition, China Merchants Bank has also launched an unlimited card, which is limited by the bank's issuance quota.