Apple India — iphone 7 service

Address:	400701
Website:	www.apple.com/in

Hi
I gave my iphone 7 32gb to service center for proximity sensor problem and heating problem, but
Now service center's person offered me with exchange iphone 7 32gb to old device that in warranty with amount 42000/- only..
But new iphone 7 is available in market 39k to 45k.
They are going to cheating,
My iphone is in warranty and allare ok in phone only proximity sensor not working from last 15-20 days and heating during call,
They are now give 2 option. 1for exchange and 2nd for without repair take back.