I spent another 2,189.5 yuan, and I can repay it on March 3, but I didn't apply for installment payment.

The bill on January 8 was 6627, and I paid 1911, leaving 4,716 yuan, and you applied for installment payment of 4,5 yuan. The remaining 216 yuan needs to be repaid on February 3rd

The first installment of 1,5 yuan of 4,5 yuan in installments needs to be repaid on February 3rd

Handling fee per installment = 4,5 * .72% = 32.4 yuan

Repayment on February 3rd = remaining 216 yuan+principal per installment+handling fee per installment = 216+15, yuan.