if the person wont give you more details tell them you cant visit. I have been texted out of the blue from numbers i have never contacted asking me to come visit, I ask who it is and I get the typical CoCo or MiMi (go figure) telling me there are new flowers to smell, or "cars" to test drive.
they give an address, which is usually not where the place actually is per the googler street view. so I usually block the # and dont contact back.