I received an Astromart e-mail response to one of ads but when I replied I get a transmission error saying that his e-mail address is not valid. When I go to check his Astromart user profile I can't find him. I've used various permutations of his first, last and email but no matches are found. Any ideas on what I can do?
Lat 42N 47' 00" Long 112W 10' 47"