I suppose I can talk about it a little, since I have not heard back from Google appeals. Basically, we were banned for some reason, but they will not say. It was not the "invalid clicks" letter they send, just a generic one that says you have been banned. If we get our account back, this thread is going ot be dumped, as it draws undue attention to the ads. For now, just know that Google banned us for no reason, or a reason they will not tell us, and in the process stole $300 from us, including all the money that was to be used for paying our hosting costs.
Google, if you are reading this, please, at least tell us why we were banned. If not invalid clicks, then what?