Yes, I agree. Very hard to reach by phone. Their web-presence is in its infancy, so their "Community Forum" is pretty worthless for finding answers.
You have to create an account and post your questions / issues through that. It may take 1-2 business days for them to open an issue thread and respond. After that there is about a 24 hr turnaround time on trading emails. So it lacks the immediacy of a telephone conversation, but eventually you can get what you need.
I have dealt with Jeremiah about a new camera issue. When he could not satisfy my expectations, Jeremiah went the extra mile to call the manager at the retail store where I purchased the camera and arrange for a downgrade + partial refund. The lower model camera is 1/3 cheaper and meets most of my needs so in the end I am still a Marcum customer.