Pagination doesnt show numbers

Change your code like this and check it.

$paged = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
$args = array(
    'post_type' => 'services',
    'post_status' => 'publish',
    'posts_per_page' => 9,
    'paged' => $paged,
);