cannot delete directory(files) from server

thanks to trevorchan and partially shiichan on my server. 2 directories cannot be modified. i want them removed. chmod is denied, going into cpanel to delete them does nothing. i thought it was the .htaccess file in the /b/ directory. but the dir shiichan left wont delete either.

are there any methods that don't involve me calling my hosting's tech

Maybe he has a shitty host and cannot do that; that's when >>4 becomes reasonable