Yes, they will pin it down.
In the meantime, you could prepare to provide a link to your php settings, by creating a blank php file, and entering just:
Save it as phpinfo.php and upload it to the root directory of your remote site. Providing a link to that may help WA to check settings.
It may be worth posting it as a new thread, as I may have 'fouled' this one!
Hope it works out,