public function getCurrency()
    {
        $options = [ 'EUR' => __('Euro'),
                    'GBP' => __('Sterling'),
                    'USD' => __('US Dollar'),
                    'CAD' => __('Canadian Dollar'),
                    'AUD' => __('Australian Dollar'),
                    'DKK' => __('Danish Krone'),
                    'SEK' => __('Swedish Krona'),
                    'NOK' => __('Norwegian Krone')
                ];
        return $options;
    }