Kent RO — product not delivered by the agency member. got cheated on kent's behalf

Website: Kent. Co. In

Have booked for a demonstration in Oct 17..after which a a sms was sent saying Mr. Vijeth kumar will be visiting us from Kent office... The person came and suggested a filter that we had to buy after testing the water.. Advance of 6000 was paid.. And later in Dec we again paid the balance amount of 13000 as he said that until we paid the full amount Kent wouldn't supply the filter... After the payment we were repeatedly told the filter was not in stocks... When we enquired again and again we were told that the person left the Kent agency and has cheated us.. Now we have paid the while amount and haven't got the filter.. Calling the Kent helpline and mailing them also proved useless... Nite sure if Kent is a trustable company after this experience... Kindly suggest a solution to get our filter for which we have paid the full amount to a person sent by Kent Co who turned out to be a cheat...