Indian Oil Corporation [IOC] — not accept my paytm and did misbehave

Address:

opp. Jindal park. tayal garden ,barwala road ,hisar, Hisar, Haryana

On 10/11/2019, i went to indian oil petrol pump outlet at hisar. Subhash oil company, barwala road, tayal garden, hisar.
I just filled up my bike fuel of rs.50. I also told them that i have no money. On that time i had only paytm.
After this incident they make illtrate misbehave to me. They said we will not accept paytm less than rs.100, we have no time to calculate your 50s paytm..'50 rupye de or nikal yaha se.
Then i started humbly request, but they didnt listen. And behave to me like a neglected person...
Their staff is sononsense, uneducated, and dont knw that how to deal with a customer.
Alright. Once upon a time, i was also a manager of a indian oil pump outlet at bikaner. I have knowledge of all the right and rules of a petrol pump outlet... So if you will not take any action.. Then i know where should to go