Can I buy at a Challenge Service station Andrew Mills November 19, 2015 01:14 Follow Can I buy at a Challenge Service station Answer: You can buy from a Challenge service station by using your Caltex card Related articles What fuel companies are currently paying a rebate to UBT? How do I apply for a fuel card? How do I cancel my fuel card? Where can I find more info on Onemedifund? Qantas Lounge Application Comments 0 comments Please sign in to leave a comment.