Karbonn A30 — refund of my money

Address: Delhi

sir i had bought a karbonn mobile model no A30 on[protected] AND FROM THE FIRST DAY ITS BATTERY ONLY LASTED HALF DAY AFTER A FULL CHARGE.AFTER FIVE DAYS ITS TOUCH STOPPED WORKING AND WHEN I WENT TO THEIR AUTHORISED SERVICE CENTER ON[protected] THEY SAID IT CAN ONLY BE REPAIRED BUT NOT REPLACED.SIR I HAD SPENT 11,500 RUPEES ON THAT HANDSET AND WHAT I GET IN RETURN IS A PIECE OF JUNK WHICH ONLY LASTED FOR SIX DAYSI FEEL CHEATED PLEASE HELP ME GET MY MONEY BACK OR NEW HAND SET COZ II DONT WANT THAT REPAIRED SET BACK
VIKAS VIJ
MOB NO [protected]
JOB SHEET NO; KJASPDL066113K3892
IMEI NO:[protected]