Shopping Mall Head Office — prank calls giving gift and holiday vouchers

Address: shopping malls head office,no.17,2nd Floor,3rd cross street extn,vijaya nagar,velachery main road,chennai-42, 603103

I got call from shopping mall head office. They informed that i got selected for free dinner sset and holiday vouchers. While going there, the office address was not properly given and we ander here and there. After reaching the site the sales woman gave some glass vessel as dinner set and holiday voucher forsome places. But we have to pay 8000 and its confirmed on first come first serve basis and we have to use it within 1 year. I inquired initially with the sales woman, she told everything free (Food and accomadation). But this is complete cheat and trap. Please dont fall into this trap.