DISSATISFACTION (Service out the door )

To cut a long story short, I have serviced my car on time, and ensured I conduct the diligence regarding maintaining it to the level GM requires. I have yolked out loads of money to adhere to the rules. Now am extremely frustrated with the customer care, telling me I need to replace a part I initially replace and the job was done by you guys. Are you trying to rip me off? Each GM dealer swings a different story. It seems you outright trying to bamboozle me and trying to hide behind the warranty issue. I procured the part and services from you and now the same problem occurs, when does reeds accept liability for the actions. After liaising with one of your call centre agent who was extremely unhelpful while conveying my (DISSATISFACTION), all she advised is that unfortunately there's nothing they can do. SO you not taking responsibility for you actions? I'm astounded and amazed the way you treat valued customers. Gone are the days when corporation abuse the consumers and there hard earn cash. I'm sure that there are countless other people out there that have been taken for a ride in this manner.