I am a manager of

Question

I am a manager of Wal*Mart. I have a customer by the name of Lisa Odonvana that bought Acer 3800 computer. There's no sound system to it & no backup CD. She had it for over 6 months now. She said that she's been trying to get a hold of someone to see what can be done but isn't getting a response. What can be done for her?