False Advertising, poor service and they could not care - Engen

Engen's ongoing "win a car" competition is MISLEADING. I have filled up over 6 times since it started, and on 3 occasions attendants fail to capture my details - even AFTER REMINDING them. Once payment is processed, they "claim" it cannot be reversed, meaning I lose my entry and amounts to FALSE ADVERTISING and is unfair, encouraging use of the brand with no expectation of winning. ENGEN KLOOF STREET GARDENS and ENGEN WILLIAM MOFFET, PORT ELIZABETH have been the culprits. After leaving my details twice on Kloof street, no manager has attempted to call me. POOR SERVICE ACCROSS PROVINCES, NO ACCOUNTABILITY - WHAT IS ENGEN GOING TO DO ABOUT THIS? I already boycott Shell for their seismic blasting, and with new kids on the block, you would think Engen attendants and management could do better to try retain customers. Unsatisfactory and maddening!