[Resolved]  Mother Dairy — Closed before timing and misbehavior

I purchased a product from mother dairy booth dilshad garden l pocket at 9:18pm I was on my way to home I checked that he gave me fake coins in exchange of 20 rs coins I return back to booth at 9:49 the shutter was closed but I saw through gap of 5-6 inches the light was opened there was a person I called him ( the same person who gave me product and exchange) and told him to exchange fake coins he told me the booth is closed I told him the time is just 9:50 then he told me to come again next day after that I called him again he didn't answer me help me with that