Write 2 letters ( good and bad) to a customer.

I have 2 assignments in this order. each of them needs only 1 page and doesn’t need to be too long letters as long as they make sense in business communication. Please write 2 letters ( good and bad) to a customer follow the instruction. The due dates are different, you have plenty of time to get them done. I will send 2 more, same format after this week. Thank you