file_get_contents() give me 403 Forbidden

I have a partner that has created some content for me to scrape.
I can access the page with my browser, but when trying to user file_get_contents, I get a 403 forbidden.

I've tried using stream_context_create, but that's not helping - it might be because I don't know what should go in there.

1) Is there any way for me to scrape the data?
2) If no, and if partner is not allowed to configure server to allow me access, what can I do then?

The code I've tried using:

$opts = array(
  'http'=>array(
    'user_agent' => 'My company name',
    'method'=>"GET",
    'header'=> implode("\r\n", array(
      'Content-type: text/plain;'
    ))
  )
);

$context = stream_context_create($opts);

//Get header content
$_header = file_get_contents($partner_url,false, $context);