Samsung India — provided duplicate products by authorised service centre

On 28 may 2019, I had cooling issue in my Samsung refrigerators so i call the toll free number and register complaint, next day serviceman came and examine and found that the parts name "relay" is not working so they replaced the product then I ask for bill they call their office and provide me bill through WhatsApp with 6 month warranty.
Then again the same problem arises on 13 oct 2019 then I continue the same process as I done before, servicemen examine and told that the same "relay" is again not working and told that this "relay" is a duplicate product and not an genuine Samsung parts.
So I want to file against the company for providing duplicate product.
Bill amount paid on 29 may 2019 is 1084/-