atleast google is not like other big organisations that not even reply. In this case mistake was of these developers that they themselves violates terms and conditions and want some special treatment. I've personally used Google Adsense and they always get in contact with me if there's some problem.
There are also many AdSense accounts that get shutdown for very vague reasons without warning. The appeals form is basically linked to an automated denial e-mail. Google is definitely not a "people" company & seems to rely & trust their algorithms & computer systems over anything else.
