Retrieve budget spent and end date for all billing accounts

Hi,

I am trying to get all the budgets from all billing accounts used under an MCC account. I saw that I should use the BudgetOrderService to get BudgetOrders, but it returns me an empty page. I can get the billing accounts from the BudgetOrderService->getBillingAccounts, what am I doing wrong? I am using the most recent version of the API and had nothing before, I am also whitelisted.

Here is my code (PHP) : 

 public function getBudgets(AdWordsUser $user) {

        

        // Get the service, which loads the required classes.

        $budgetOrderService = $user->GetService('BudgetOrderService', ADWORDS_VERSION);

        // Create selector.

        $selector = new Selector();

        $selector->fields = array('id', 'spendingLimit', 'endDateTime');

        

        // Create paging controls.

        $selector->paging = new Paging(0, AdWordsConstants::RECOMMENDED_PAGE_SIZE);

        

        do {

            // Make the get request.

            $page = $budgetOrderService->get($selector);

            print_r($page); // Here it says BudgetOrderPage Object ( [entries] => [totalNumEntries] => 0

            // Show the information for all budgets

            if (isset($page->entries)) {

                foreach ($page->entries as $budgetOrder) {

                    echo $budgetOrder->id;

                    echo $budgetOrder->spendingLimit;

                    echo $budgetOrder->endDateTime;

                }   

            }

        

            // Advance the paging index.

            $selector->paging->startIndex += AdWordsConstants::RECOMMENDED_PAGE_SIZE;

        } while ($page->totalNumEntries > $selector->paging->startIndex);

    }

}

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