Indian Oil Petrol Pump — Cheating in filling petrol

To whomsoever it concerns, Indian Oil Kavya Petrol Park, Whitefield Bangalore is cheating with the customers. One person before me has filled the petrol of Rs. 100/- when I have asked to fill the petrol of Rs 450/- using my citibank card then the third guy has diverted my attention by giving a free magazine and in a time span of 2 seconds the meter started showing 2 ltrs already filled. I have complaint to the employee about less petrol but he was not at all listening to my complaint and arguing non-sense that my bike tank capacity is 12 ltrs that's why it is showing less petrol in the meter. I don't know how far this complaint will be helpful, but I thought I should complaint it someone where. Regards, Anandmation as possible...