Amazon India — not giving replacement

Address:

122001

I have purchased an apple iphone 6 on 10 oct in which charger and earphones were missing and then i called amazon and they provided me replacement but the replaced phone is having lots of scratches on it and now they are giving refund instead of replacement and saying u have to place a fresh order but the concern is that i have purchased this phone during the sale and i got this phone at discount so now who will bear the extra cost if ipurchase this phone now.
So either provide fresh replacement or bear the extra cost.

Regards
Prince
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