Wayne, you posted this question in a public forum and whoever you sent a private message to may or may not see it here and, even if they do, they may or may not recognize that you're addressing them.
When you send someone a private message, it would be nice if you receive a response. Unfortunately, some people do not respond, though, and there isn't a whole lot you can do about it. In other cases, the member may no longer be active here and perhaps their email address is no longer valid, so your message might not have reached them. Again, there's not a whole lot you can do about it.
I sympathize with you.