Nokia - 3110 Classic — Switches off automatically and wont switch on again

Hai,

This is Dayanand. I have purchase a new Nokia 3110 classic mobile on 17.05.09.
This has a problem of switching of automatically. Then i can not switch on again. Will have to take it to the Nokia care & get it repaired. They tel it is a software problem. This has happened for 4 times in 3 months. I am also not using blue tooth in this mobile.
If this continues after warranty also, I will have to pay for each time. This will be highly impossible. I have requested the Nokia care people for replacement of Hand set. They have not promised me any thing but they told that they will raise a complaint requesting handset replacement.
How do i proceed to get a replacement for this handset? Is their any other way?
I am really fed up with Nokia care people. They are only giving me temporary solutions. They are not trying to solve the problem permanently.
I need the details to approach Nokia people directly (Not nokia care-they are just service providers for them).

Other details: IMCI: [protected]
Services opted: 1st & 2nd time at Mobile care(Nokia care), @ BTM layout, Bangalore.
3rd time at Magnum Fashions, 3rd block, Jayanagar, Bangalore (Job sheet no.[protected]/090914/35)
4th time at Mobile care(Nokia care), @ BTM layout, Bangalore. (Job sheet no. 091022/23)

4th time also they had uploaded some software and told me that the mobile is ready. But I told them that, I cant accept this. I need a replacement for this handset. Asked them to raise a complaint.