This customer has ever traded with you before? A settlement? We need you to help out the letter and share responsibilities if the customer reject the payment.
This customer had purchased for you before? How are paying. We want you to help out a confirmation letter and share the responsibility if the customer refuses to pay.
This client เคยซ water is sold to you before.? paid? We need you help out the confirmation letter, and to share responsibility if the customer refused to pay.