Bharat Petroleum [BPCL] — cheating with card payments

Address:

Chennai, Tamil Nadu, 600100

Bp petrol bank-vetrivel agencies in med avalkal, chennai. Asked to fill 7 litre petrol which costs 530.74 as of nov 2, 2019. Gave my card for payment and the girl asked if she can pay by wifi access. She then said it's not working and asked to enter pin and in that screen it won't show the amount. I entered pin and went away as i was in an emergency. After couple of hours noticed that 5300.74 was swiped. Got contact no from google and called them. As soon as i said that "i put petrol for 530rs" the person started explaining the drama. Later i went directly and got my remaining money back and noticed that guy had too many such payment copy for 3000, 6000 etc. Looks like they do intentionally and many o[censored]s doesn't notice how much was swiped. Always get customer copy and proceed to avoid this.