David, email does not work, making call on the top of email makes a big difference, since you had talked to Joe don't shy away from giving him a call and refer to email you sent. Sending just email does not work with these guys because they are pretty busy and don't have time to respond to email, a quick call makes a difference..
I personally think you should give a call, don't hesitate, they are not going to stop filing for OTCBB if you make a call
LOL