Hindustan Petroleum
Club HP points for purchases not given

I am a resident of Gurgaon, Haryana. Some petrol pumps in this city though they display the Club HP boards but they are not able to give points against purchases on the Club HP membership cards.

The excuse is that the machine is not working or not available.

I do not know to which e-mail id of Hindustan Petroleum I should send the e-mail giving the details of my experience