Micromax Canvas Unite 2 — defect in mobile

Address:

Dakshina Kannada, Karnataka

i hav bought micromax canvas unite 2(8gb) from shopclues.com throgh online shopping the defect in the mobile is it is can't turned on now the mobile is switched off only. when i fst opened the mobile afterwards i didn't made it off bt yesterday to insert memory card i made it off but now it is not turned on. i tried and trid but no use till now. i want to replace it. what to do i don't know. there is no sort of response from Shopclues.com in replacing the mobile as they told me of 30 days replacement guarantee.my mobile is 28 days old only plz help me