Apple India — iphone 7 problems

Address: Mumbai City, Maharashtra, 400058

I dr narendra sharma was gigted an iphone7 2years back by a friend, but than i had to go for my fellowship outside and it remained packed only. On returning back when i opened the iphone7 it couldn't be on even after charging. Showed in an apple store but they are helpless as it was purchased 2 years back. So my doubt is whether a defective piece was given to me as it was seal pack. Kindly look into matter as it brings a bad reputation for company on trust as well as services.