I am facing to be unable to pay in Amex card due to trouble on credit card payment at the moment. Would you please wait for about a week ? I am so sorry for the trouble .
Currently I cannot make a payment with AMEX card due to some trouble of the credit card. Would it be possible for you to wait for my payment approx. one more week? I am very sorry for causing any trouble to you.
Due to the trouble of credit card, I cannot pay by using the credit card of American Express now. May I ask you to wait the payment for one week? I apologize to you.