On vacation, had fuel pump replaced here. Very good service for the replacement. Left on our return trip home. Had issues filling up with gas. This continued for 3 week and got worst. Fuel tank was pulled by our local service dealer. They found fuel line was damaged during Hyatt's replacement of fuel pump causing a crimp in the line. Actually returned the fuel line to Jeff, the service manager, on our next visit to Myrtle Beach. He stated there should be reimbursement of the cost of the replacement line they damaged. A copy of invoice, pictures, and fuel line was left with Jeff. To date after many phone calls to Jeff, we have not received the courtesy of even a return call. We are a life-long customer of GMC for over 40 years.