Xiaomi India — screen of phone faulty

I sent my xoaomi phone under warranty to service center at bhagat singh mkt, new delhi.
The dealer was not cooperating.in spite of producing the bill and phone with box, for repairing problem of no screen display, he did not accept. He then asked for id of person for whome the phone was purchased as a gift.
Plz take na to solve the problem.

M c joshi
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