I am having technical problems w/ Audiogon-help

I tried to buy a piece of equipment a couple of days ago. I got this note from Audiogon that said I need to confirm my e-mail address due to bounce backs. I followed the instructions. I was supposed to get a 4 digit confirmation code in return. I tried this three times and I got no response. I have also written 2 e-mails to audiogon, seeking help, which don't appear to have gone through. So, my question is how do you contact Audiogon when your e-mail is having a problem? I am hoping someone knows a phone#. I can't find a phone # listed on the site. As you can see by now this is rather circular. I would greatly appreciate some help w/ this matter.

Thnk You in Advance,
Bryan1