Yes, I have called 3 times and never received a call back. I am new to iMonetize as of October 2008. I switched some of my domains over them to see how they perform.
Yesterday, I called and talked to what I think was an answering service. I asked why my calls were not being returned. The person told me that no one had been in the office and picked up messages that day. It was about 4:30 PM when I called. She said that all she does is take messages and then it out of her hands.
The lack of support and communication is very concerning.