Nokia 5800 Tube — My 5800 is dead.

I bought nokia 5800 from coimbatore 4 months before. Last month, suddenly it got turned off. So i took it to nokia care at coimbatore..They told that water has entered inside and so i wont be getting warranty. They told it will take Rs.300 to correct it. I agreed and gave the phone. After 3 weeks they told that problem cannot be solved, since the circuit is damaged.They also asked me to sell the phone. When i reached back home, i noticed that the 3 buttons at the bottom are not working. So i took it to nokia care in calicut. They sent the mobile to delhi. After 2 weeks when i went there they told it has returned from delhi saying that for water logging cases they cannot do the service. When i asked him what next to do, he told there might be some problem with the 3 buttons below so that power is not getting to the phone and that`s y its not getting turned on. So i asked him to replace the buttons and see. Then he replied like they have to place order for that buttons and will get it only 3 weeks later. They also charged me Rs. 1000 for it. I told them the problem with the button was not there previously and it cam only after giving ti nkia care at coimbatore. They told they cannot do anything and since its a water complaint i cannot get warranty for that buttons also. Even of we replace the buttons they cannot give me any assurance that mobile will work again. I don`t know why nokia is not providing warranty for water complaints to 5800. These WATER problems arise because of the bad design of 5800. In no other phone you can see the earphone hole at the top. Because of that water is entering inside even if we use the pouch and put it in pocket.. I dont know what i will do now. i will wait for 3 weeks as told by the customer Care guy. Even then if it not working i am planning to move legally.Can anyone provide any suggestion on this?i regret now for buying this phone..Can i get a replacement for it from anywhere?