Nine months ago, Sandra Tucker purchased a computerized sewing machine by mail order from Kunkel Enterprises. The sewing machine was sold with a six-month limited warranty. Sandra has returned the sewing machine to Kunkel because the stitching was poor and the tension could not be adjusted to correct the problem. Although she raised no concerns about the machine during the warranty period, she has requested a new replacement machine. Write a letter to Sandra denying her request but offering to repair the machine at a cost of $90 to Sandra.