I had my account disabled last July and went through a similar experience in my appeal attempt. The interesting fact I pointed out to Google was that they sent me about 80 percent of my visitors via organic search. I didn't try to game the system or blend the ads to increase ctr or mislead consumers.
I offered to help diagnose the issue by going through server logs and anything else to no avail.
I guess when Google is making so much money from advertisers they rather just error on their side rather than spend time reviewing appeals.
Diagnosing an individual case probably costs them more than they make from it in years. But not investigating individual cases could carry a cumulative cost in terms of perception that could bring down the entire advertising ponzi scheme.
I offered to help diagnose the issue by going through server logs and anything else to no avail.
I guess when Google is making so much money from advertisers they rather just error on their side rather than spend time reviewing appeals.