if we ask you to put your complaint or question in writing and we do not receive it within 10 business days, we may not credit your account. in this example, we have a list of products where each row represents a unique product. 9. there is someone you need to visit. gosh, i seem to remember somebody warning us about that prior to march, 2010. maybe democrats should have listened. you may use the business letter structure in virtually any expert communication. this was my bumped up breakfast. 5. was your home built before 1950? 