[Resolved]  Sony, Combo Drive Serial No. 1118018 — Non functioning of CD writer

I bought the combo drive (Sony) Serial No. 1118018 from M/s Microcare, Kharagpur, India Tel: [protected] at the time I bought a PC from them of model compaq Presario SR 11151L. From the begining I have not used the Combo Drive. When I tried to use it for first time after 3 months it was not working. Thereafter I requested M/s Microcare to get it rectified. They removed the Drive (CD writer+DVD Player) and took about 2 months to return it in 2005. But still it was not working properly. As I am in transferable job i could not use my PC regularly and it was lying idle most of the time in last 2 and half years. Now I want to use my PC regularly so I need to rectify the Combo Drive. But when I approached service center of Sony India In Kolkata, India they refused to attend it. I want to know the address of sesvice centre who can rectify the Combo Drive .