very bad customer service

Very bad customer service. My nephew forgot his hat in the car. I called them within 30 mins after I returned the car and was told they are busy, can't check for me. They asked me to call back after 3 hours. I did, and was told they were still too busy to spend one minute to get the hat for me. They told me to call back after 8pm. I did, and was told that they will give me a call back but they never called. I called again at 11pm and they told me sorry the car is rented out and they can't do anything now. I asked them if they can try contact the renter. They said okay they try the next morning and let me know. But they never did. Overall I called 8 times for such a small thing which I think a good customer service would solve the problem at the very first call. My nephew is very very upset.