Hi Eric,
Thanks for reaching out, our goal has always been to help our customers as quickly and efficiently as possible, while always staying TAGFEE throughout. I can completely understand your frustration here, and interestingly enough we've been talking as a team about how we can ensure that contacting is as easy as possible, and ensure that we're able to still give the best service possible.
Normally emailing us at help@moz.com, or submitting this form: http://moz.com/help/contact, will always do the trick. This weekend however we experienced some server issues which seemed to cause many of our help emails to bounce, and right now we're hearing that many folks are getting a response saying our mailbox is full.
We're feverishly working hard to get this resolved, because we do care deeply about the customer experience.
I've assigned your question to our Customer Service Manager, and will ping him about it as well. We'll update this thread when we have more information about the mailbox quota issue. At that point you will be able to send an email with the specific issues you're having.
Thanks for all your patience, and for bringing the issue to our attention! If we don't know about it, we can't fix it. 
Have a good day!
Jen