HTC India — For complaining repair authority

Address:

New Delhi, Delhi, 110059

I have submit my htc cell to a store with a complaint of only display cannot work at this time and all works calls, notification tone over all all work will done by me only display cant work bt when i went to receive my cell he says that your mother bord will distroy bt i cant belive on it he tells me lie and he replace my mother bord with other. pls help me what can i do now.
i m very thankful to u.
thank u, pls pls pls inform me what can i do as soon as possible.