Leeco Le 2 Smartphone — My mobile data not working from day one and after several attempts could not contact customer care and finally service centre not helping

Sir, this is very unfair to me because i had ordered this phone without waiting for diwali discount period for my mother but this has dissappointed us since it is not working since day one and as i was busy in with my college classes my mother could not do much to resolve it and even use it as my father was operated during this period and for which we required a phone for comunicating. I doubt as we have been delievered a refurbshed phone kindly do the needful and refund the amount and take this phone back as it is not working and when somehow i went to service centre they told me it may take another 30-35 days to resolve it. So this has been a total failure for me as it is not working in my urgent need. Kindly be quick in responding