Nokia N73 — Consistent Problems

I bought a Nokia N73 in July. There were problems of booting after 1.5 months. Nokia Care took it and did not return for 1 month and 10 days. I was given back the set replaced.
The very same evening, it collapsed. Again afetr they took the battery n replaced after 2 weeks. Very next day, it collapsed again n battery was replaced. Now for the 4th time again I have submitted the phone to Nokia care with the battery. Out of 5 months, 4 months the phone was with Nokia Care, n they say no warranty will be extended. I want my money back with compensation or I shall move to Consumer Court. Aditya Saxena [protected]