我方记录显示贵方仍有1500美元账款过期未付。

A.Our records show that the balance of USD1，500 on your account is still overdue.

B.Our records show that the balance of USD1，500 at your account is still overdue.

C.Our records show that the balance of USD1，500 on your account is due.

D.Our records show that the balance of USD1，500 for your account is still overdue.

正确答案：Our records show that the balance of USD1，500 on your account is still overdue.