COMPLAINT AGAINST SAMSUNG DIGITAL INVERTER AC

MY AC IS NOT WORKING FROM LAST MONTH SINCE I HAD PURCHASED IN 3-02-2015.
1. LESS COOLING
2.LEAKAGE OF WATER
3.COMPRESSOR PROBLEM
4.ELECTRIC BILL IS TOO HIGH AFTER USING FOR 9 TO 10 HRS PER DAY BILL REFLECTED 3680/-.
MISBEHAVIOR OF SAMSUNG SERVICE CENTER NO COOPERATION FROM THE SIDE OF DEALER ie RELIANCE DIGITAL NAGER BAZAAR KOLKATA 700074.
I AM TIRED OF THIS WORTHLESS PRODUCT PLS HELP ME TO REPLACE MY AC OR REFUND MY MONEY.