If you spend 6000 yuan, the interest is about 6000*0.0005*30=90, based on the bill. In addition, I would like to remind you that if you don't repay in full, you must repay according to the minimum repayment amount on the bill, which will not affect your personal credit. If you don't pay the minimum repayment amount, you will also be charged a late fee, which is = (minimum repayment amount-paid amount on the due repayment date) × 5%, and the minimum 5 yuan (1 USD/Euro). Moreover, banks should truthfully report the customer's credit report and report the overdue account of the customer's credit card to the credit information system of the People's Bank of China. So the minimum repayment amount can't be forgotten.