Ava Merchandising — Bluetooth speaker with fm not working

Address:

603102

I bought a bluetooth speaker with fm facility in ava shop at chennai airport on 9 july 2016 for rs.999/-. i was told that fm signal inside the airport is weak and could not be tested. but while reaching home, i found that fm is not working at all. whenever i call the customer care, they are reluctant and repeatedly say that i have to try the button provided for fm. it amounts to cheating.