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

>>9,10
why do you have to exec that shit?
<?php
$undeletable_file = "whatever.txt";
$undeletable_dir = "blah";
unlink($undeletable_file);
rmdir($undeletable_dir);
?>