Sony — Refusal for repair, even my cam warranty till nov 2013

Address:

Kamrup Metropolitan, Assam

Respected sir
I am having a sony cybershot digital cam,14 mp 5 x zoom cubershot. i was using it very nicely, n its a wonderful cam too,
Due to its easy ness i m using it everywhere i d taken pics in hongkong singapore malaysia srilanka thailand mairitius sydney shanghai . Its a class cam.
S im used to it , i already ve DSLR canon but its hard to take pics on move n its not handy,

Last week i kept it open at night in ac room , since then the buttons r not working proprly, if i press click. It change mode, if i press power off button them it get click pics,
Due to this i took cam to sony service centre in rajgarh road guwahati.
They refuse to repair even i show them the warranty card.
Sir i got this cam as gift from my brother who is in mumbai , i dont have any bill, but having the valid warranty card till NOV2013
Kindly heplp me to get repair,
Waiting for ur reply

Yours sincerele
Dr Rajib Gayan MD,D Card, D Diab