On the 5 July 2021 I went to an Engen garage to fill a 20lt drum of petrol. I gave the attendant my FIRST AUTO bank BULK CARD which was not the registration of the vehicle. The manager and his daughter argued with me they would not listen to my explanation and shut the security door in my face and subsequently told me to never come back to their station. They did this In front of the entire shop they shouted at me and would not let me explain that a FNB bulk petro card is the right card to be using. They made me use my vehicles First Auto Card which is not a BULK CARD to pay for the 20lt drum. This is in fact illegal because the First Auto card that I used is NOT a bulk card and therefore does not allow me to fill up drums. I contacted First AUto to discuss the matter and they told me the reason for a bulk card is so that i can fill up drums and the bulk card risk lies with me. The fact that the petrol station made me fill up the drum with my car card that is not a bulk card is illegal. I use Engen because of the relationship Engen has with FNB. However Engen cannot seem to train the owners of the petrol stations at to which cards they can use. Please teach the merchants what it means when a petrol card has BULK CARD written on it. If your merchant was trained all of this humiliation I received today could have been avoided. I therefore blame Engen for the merchants unruly behavior because they have not been informed or trained properly. Why be part of a franchisee if there is not training support on something as simple as this.