D-link modem glb-502t
Non working modem

I had purchsed modem in june dlink modem model no glb-502t from anupam stores mumbai and within three monts it has stop working i have been at there santacrus service center thre times but nothin has happend as the time i bring my modem it does not work they are not ready to replace the modem as well. so i would to make a complaint .hope to get some respite.thaxs