Bharat Petroleum [BPCL] — poor customer service

My name is anand from chennai, i was waiting patiently to fill the petrol from the bharath petrol bunk in alwarpet, he is just showing his anger fro no reason and did not even respect me, did not even respecting the customers properly in that bunk i have no idea what the manager of that bunk is doing without checking all the issues. I filled petrol for 200 rs in card, that person who was standing there is not ready to fill petrol to me, because i was going to pay money by card and also was using some bad words. I want you to take action against that petrol bunk. Please sir.