Your repayment date is the 17th, then the billing date of your card will be on the 27th, so the money you spend tomorrow will not be debited on the 27th, so you will have to pay it back on the 17th of next month. Just spend the money tomorrow. It is recommended that you pay in installments appropriately. In addition, the longest interest-free period for Shanghai Pudong Development Bank credit card is 50 days. I hope it will be helpful to you.