200 yuan. According to the rules for using China Merchants Credit Card, we can see that the minimum repayment of China Merchants Credit Card is 10% of the deposit, and the minimum repayment is 2000 times 10, which equals 200 yuan. China Merchants Bank Credit Card: On December 3, 2002, China Merchants Bank officially issued the first international standard dual-currency credit card in China, ushering in a new era of credit card consumption in China.