My husband has had the same problem with trying to buy a truck! It is frustrating.
All our ads here on rodeoclassifieds have phone numbers but I know not all sites require them (and I have had some people request they be left off and use email only)
When we were trying to buy a truck (and other farm equipment) he's left messages at several places and haven't had them returned.
If they are for sale return the call....if they are sold....mark it sold (or have admin mark it for you) right?
I check my spam mail frequently because the most legitimate things do end up there, but I wonder how many others do.
What happens is not as important as how you react to what happens. -Thaddeus Golas