Samsung Metro 3310 — HANGED OUT AND FEATURES NOT WORKING OUT

samsung metro 3310 — CHANGEING OF SET

I HAVE TO PURCHASED A NEW SET SAMSUNG METRO 3310 MOBILE SET FROM ATTRACTION POINT C-7/34, GORAS BUILDING, BESIDE S.B.I. (ATM) LAHURABIR, VARANASI ON DATE 11/11/2009.
BEFORE PURCHASING OF SET I HAVE TO ASK SALESMAN, IN THIS SET THE CALL RECORDING IS AVAILABLE THEN HE INFORM TO ME YES EVERY THING IS AVAILABLE, I HAVE TO ALSO TELL HIM PLEASE CHECK ALL THE FEATURES WELL BUT HE WAS TELL TO ME , SIR THIS SET IS NEW PACKED & I HAVE TO ASSURE ALL THE SYSTEM IS WELL WORK,
THEN AFTER TREE DAYS FROM PURCHASING DATE I HAVE TO PURCHASED NEW SIM FROM VODAFONE THEN I HAVE TO CHECK, THERE IS NO FACILITY OF CALL RECORDING ONLY FACILITY OF VOICE RECORDING, THEN AFTER I HAVE TO CALL SHOW ROOM MOBILE NUMBER WHICH IS [protected]. HE WAS INVITE TO ME ON OUR SHOP FOR THE CHECKING OF NEW HANDSET, AFTER CHECKING HE WAS TELL TO ME SIR THERE IS NO FACILITY IN THIS SET. SO I HAVE TO REQUEST SHOP OWNER PLEASE CHANGE THE MY HANDSET & GIVE ME ONE OTHER HANDSET WHERE IS ALL FACILITY IS AVAILABLE WHICH I WANT. THEN HE WAS REFUSE TO ME & ON MY ORIGINAL SALE INVOICE HE HAS TO WRITTEN BY PEN " MOBILE SET USE HONE KE BAD CHANGE NAHI HOTA HAI.
PLEASE TELL ME WHAT I HAVE TO DO AGAINST SHOP OWNER & COMPANY.