"The member and his son brought in their 2009 Chevrolet Silverado to our dealership on 8/3/10. they had two major concerns. A) The check engine indicator lamp is on and the reduced engine power indicator is on. B) The air conditioning would not blow cold air. We received the authorization from member to diagnose the concerns, after diagnosing the concerns we called with an estimate for repairs. At that time he authorized the cost of repairs. We performed the repairs which included replacing the air filter, mass air flow sensor, fuel filter, changing the oil and performing an exhaust regeneration. We also replaced some air conditioning actuators to repair the air conditioning system. At no time prior to the repairs being performed was a service contract/extended warranty mentioned to us. When the repairs were completed, we talked to Mrs. to let them know the vehicle was ready. It was at this time that she let us know they had a aftermarket extended service policy. On their behalf we called their extended service policy company and were informed that the customer is required to get prior authorization before repairs are performed and therefore they would not pay us; however, they informed us to have them pay for the repairs and submit for possible reimbursement. We have been honest and upfront with them and did not perform any repairs without their prior authorization. Had we known about the warranty coverage, we would gladly have assisted them in this matter; even though their policy is not sold or service through GM or this dealership. We empathize with them, however, we are only asking for the payment of the services authorized and provided. Joe Rider-Service Manager"