I always use their tracking service and almost always end up with a lower rate than the diferente booking. On a recent vacation my diferente rate was $1065 for an SUV through Avis. Over the next 2 months I received numerous tracking updates and by re-booking and re-tracking (5 times) https://cesarjubio.blogoxo.com/32406158/indicadores-sobre-audiorecorder-com-mx-que-debe-saber