Trouble getting child categories.

I’m trying to get the child categories of a category named “Products” with ID 4.

$args = array(
‘type’ => ‘post’,
‘parent’ => 4,
‘orderby’ => ‘name’,
‘order’ => ‘ASC’,
‘hide_empty’ => 1,
‘hierarchical’ => 1,
‘exclude’ => ”,
‘include’ => ”,
‘number’ => ”,
‘taxonomy’ => ‘category’,
‘pad_counts’ => false );

$prod_cats = get_categories($args);

Referring to the Codex, I’ve tried putting 4 in child of and parent.
And it returns nothing.

I also tried get_categories() without $args, and it doesn’t include my child categories.

Any idea guys?

Thanks!