Hello Mr. Sreenivas !
Sorry to hear about your experience.
First of all, i would like to request you to please post all the details of the seller like name, complete postal address, telephone no, email, bank account details, etc.
In your case, the seller will not be in any position to run away with your money.
So do not panic at all.
I'm sure that you can get the seller in a trap and catch him out.
Also, do contact emailswaroop, who is from Kolkata.
She will be of great help to you.
Thanks 😉