帮我看看下面的作文,Your friend had a very disappointing experience wh

帮我看看下面的作文,
Your friend had a very disappointing experience while shopping in a store or eating in a restaurant.As a witness,you write a letter of complaint to the department concerned.In this letter,you inevitably need to give an account as to what actually happened.Try to report all the events objectively,that is,let the people involved and their actions speak for themselves as the story moves along.