$current_user = wp_get_current_user();
$objects = Infusionsoft_DataService::query(new Infusionsoft_Contact(), array('Email' => '%' . $current_user->user_email . '%'));
$ind_id = $objects[0]->Id;
$objects_invoice = Infusionsoft_DataService::query(new Infusionsoft_Invoice(), array('ContactId' =>
$ind_id));
print_r($objects_invoice);