Dell India — Dell Warranty Issue

Address:	560071
Website:	www.dell.co.in

I purchased dell inspiron 15 series laptop, Model - INSPIRON 5547 Notebook on 18-jun-2015 and applied for dell back to college offer i got the gift voucher and headphone as well as the status of my warranty on dellbacktocollege.com is also successful but when i check it on dell official website it is not showing the extended warranty i contacted so many times to dell but the reply was it will take some time but yet it is not done after so many call and emails. I had provided them every details they asked but Now they even don't reply to e-mails.
Sir, i want dell to extend my warranty as stated on Dell back to college website.
I had also included the screenshot of the offer contents.