Indian Oil Corporation [IOC] — cheating the customers by giving less petrol

Address:

Ahmedabad, Gujarat, 380007

I have been seeing this since last 3-4 years at iocl petrol pump - kalptaru at anjali cross roads, ahmedabad, gujarat. They use the following modus operandi to cheat the customers.
When you go to fill the petrol in vehicle, two attendants comes to attend you. One person keeps you busy talking. Other person fills the petrol. If you had asked for rs. 1500/- petrol. He fills petrol of rs. 200/- and says he heard rs. 200 only. Then he starts filling petrol again and fills petrol for rs. 1300/-. And says he filled the petrol for rs. 200 before and then rs. 1300 so total petrol of rs. 1500. But when he started filling petrol again he started from rs. 200 only. That is how they cheat the customers by giving petrol of rs. 1300 for rs. 1500.