Indian Oil Corporation [IOC] — fuel price tweaked in the ioc petrol pump (ab enterprises) kumaran nagar (sholinganallur) opposite to sathyabama univeristy

Address:

600119

I filled petrol for my car on 12th march for 1882 rs. (75.28 * 25 litres)
The same day i checked the website and found the cost of 1 litre petrol was 75.14 whereas they tweaked their machine to 75.28 and cheated 3.50
On 13th i went to fill petrol for my scooter and i observed the machine was calibrated to 75.30
I enquired about this to the supervisor there, and he said the website price will be less, but we calibrate according to adding the toll fees on the road and the distance from the filling point etc.
Is this correct?
In a day thousands of vehicles fill in the petrol bunk and their argument of calibrating the machine to adjust for toll fees and other expenses is not acceptable and wrong practice.
I request you to please take necessary action and correct the petrol pump