Olx India — olx seller fraud - kadali venkata kishore

I contacted a seller in olx for an used car buying. I was far from the place and required couple of days time to reach him to finalize the deal. Then the seller told me to pay some amount to block for me and in case i don't like the car, he will return the amount so on that condition i paid 2000 rs and the next day my travel got cancelled due to covid situation instead i arranged my brother to inspect the car. With in the time he asked to pay some more amount as he couldn't trust me so i paid 6000 rs more. Next day my brother inspected the car and he didn't like it so i said i cant buy the car. He said no problem as i have other buyers also but need 2 days time to pay my amount 8000rs back. I agreed but after 2 days he blocked my number and if i call from other numbers he says he will not pay back as such no agreement there? What kind of people they are. I lost the amount but may be other people will aware of such fraudulent.
His name - kadali venkata kishore
Olx user name - krishna
Email - [protected]@gmail.com
Ph:[protected]