【正确答案】One possible version:
Dear sir,
   Last year I bought a refrigerator in your store on Changan Road. We all like the shape and colour of the refrigerator. But recently I find something wrong with it. It begins to make noise when it is turned on. At first it is low but gradually it becomes louder and louder. To make the matter worse, it even stops working sometimes. We all feel disappointed at it. I am writing to you lo ask for help. Would you please send somebody to repair it? I will be at home this weekend. Please call me before you come. My telephone number is 66065531. Thank you very much.