I remember learning about this while dealing with a sudden ticket change. A “full void” usually means enough treatment points or actions to completely eliminate pests in an area—sprays, baits, inspections, sealing entry holes, etc. It depends on the infestation. While the tech explained all that, I was simultaneously trying to fix my flight online, which wasn’t going anywhere. Eventually, I just called the airline and had everything handled in minutes. Whether it’s pests or travel, sometimes the direct route is the easiest.