Note taken, but I think Apple is asking them to meet certain capacity levels and power user levels. I have the feeling the other networks might be bigger, but cannot take the load of heavy iPhone users.
Heavy data users can make everything slow down or not even connect at all. I know my family typically uses about 6gb of data a month and my work phone another 4gb of data all by its self. AT&T considers me as a heavy user as we hit 10-12gb monthly.
You sir are fighting a losing battle. Our forum members from Belgium are presenting valid information and you're presenting supposition. I would not continue trying to justify the block. This does seem so unlike Apple though.