Micromax A S301 — New mobile phone is not working with in three days from the date of purchse (02/10/2015,

Ref. Mobile phone model S301, Purchased from M/S CELL MALL, Trichy. Through Invoice No 1006136 dtd: 02/10/2015. with in four day after purchase it is not working properly, I submitted the mobile phone to the service center Sri Balaji electronics, Trichy. The checked it and told me that the mobile is not in condition so we sent mail for approval, and after getting approval new mobile will be given you, But now when we approached them (08/10/2015, at 12.30 Pm they replied me The approval request is rejected, Hence I request you to register my compliant and take action to get me new Mobile phone, Thanking you,