smells like a scam. you can always email to make sure, if in any way shape or form they ask for your cc then walk away. a good question is to ask what the major intersection is for the incall. dont mention the city. if its a fraud more than likely they wont know any streets in your city and they will more than likely have ads posted all over and have no idea where this email is coming from...
remember to always think with the head on your shoulders, not the one between your legs