Why is FNB doing guess work when answering eBucks Fuel Spend Rewards questions?

I logged query re: why did I not earn eBucks in the past months for fuel spend and Clicks. I give credit where it is due. The Clicks part was answered perfectly especially if there is indeed a minimum spend. I actually verified this. We move on. The fuel spend part demonstrated that the FNB team is guessing. Why did I not earn eBucks for fuel spend? FNB claim that my car is not loaded on Nav>Car in the App. So in thinking that I really did not have a car loaded, I actually go to the app to add a car. Guess what? There is a car there already under My Garage. Probably loaded by FNB since it was paid for by their car finance. What is insulting is I understand that with integrated backend IT systems, FNB has full view of a lot of products I have with them. Then they have an audacity to say I have no car loaded. It is almost as if they are keeping me busy with back and forth like government departments do, just to avoid giving straight answers. I would not be on this platform if I got a straight answer.

So then my question is: why did I not earn eBucks for fuel spend when I have a car in My Garage already (probably loaded by virtue of having been a Wesbank client)? Let us not guess here. Please give an explanation that will remove all doubts.

Otherwise, please remedy the situation and credit me my missing eBucks.