HDFC charging me extra 10/- when I pay petrol bill through credit card

The thing is they charge some .5 -1 % extra when u pay at any fuel station.
To avoid this, always make sure they are using HDFC’s POS machine.
They will charge you that 1% or whatever is the extra amount but within a day or two they do credit amount in your statement.
I hope this helps.
#JJ
@jaybro

This is not specific to HDFC & it is applicable for mostly all Credit Card payments.
We need to swipe/tap the card on the POS terminal (machine) issued by that specific back, e.g., HDFC card on HDFC terminal, CITI on CITI terminal, etc.
Moreover, some cards have minimum transaction criteria even it is used on the correct machine.

Received this today morning:

“Dear Credit Cardholder, as advised by Public Sector Oil Marketing Companies, the 0.75% Cashback on fuel transactions will be discontinued w.e.f 1 Oct’19.T&C”

I always use Paytm and PhonePe to pay fuel, never pay directly via credit card.
Using Amex reward card, so adding money to Paytm also give me points