Indian Oil Corporation [IOC] — Charging high petrol price by m/sm/s gunesh india pvt. ltd, arniyapanth, shambhoopura, distt.- chittorgarh, rajasthan

Dear sir,
Yesterday, i went to petrol pump for filling of petrol in my vehicle and found that m/s gunesh india pvt. Ltd, arniyapanth, shambhoopura, distt.- chittorgarh, rajasthan are charging the rs 71.4/- per ltr as compare to other petrol pump are charging rs 69.2/- per ltr, which is approx. Rs 2.2/- higher then to other petrol pump. Therefore, asked to petrol pump owner for charging more prices, then he rudely said that this is extra premium petrol and refused to give any answer of any query and unable to give any answer satisfactory.
I checked the petrol payment bill (Attached here) and also filling pump there is not showing any display of extra premium petrol, which is charging from many days to customer.
Also, tried to give feed-back to ioc site but unable to complaint in it because submission problem in online feed-back site

My mail id - pawan. [protected]@gmail.com and [protected]

Pawan kumar