Compaq (HP) Presario Laptop / DVD replacement or repair

I sent my laptop back to HP as the DVD player failed to work. That was 6 weeks ago and I have still no laptop back. I have called 4 times, waiting for someone to answer my call on average for 45 minutes. Three times I have asked for call backs and so far no one has. The first two times I called they did not know the status of the repair. The last time I called they said the repair had been cancelled! News to me. I am still waiting for a call back for that. The PC was only 6 months old when I sent it in. It has now spent over 20% of it's life in a repair centre. I am so mad I will buy an Apple next time.