The same thing has happened to me on 11 Jan 15, i visited Plaza just for one tinted glass but same person with door rubber came and started to work with same price quote that is 60/feet. i told just do one feet and rest dont touch, while in my short absence he completed the work on two doors. As I came back i pushed him back from my car and tell him to give me work cost. he said total it cost 21000. I just got hold me nerves at that moment and i told him to get his tape off my car immediately if not then call all of the market members to come and beat me I will not give any money. After listening this, he had no choice instead of asking what I can give, so i decided to give 300 Ruppees for his work which I think is enough for their fraud otherwise I was in no mood of giving them a single penny.