public function doCredit(array $array)
    {
        $this->formatRequest($array);
        $WSRequest = array(
            'payment'         => $this->payment($array['payment']),
            'card'            => $this->card($array['card']),
            'buyer'           => $this->buyer($array['buyer'], $array['shippingAddress'], $array['billingAddress']),
            'privateDataList' => $this->privateData,
            'order'           => $this->order($array['order']),
            'comment'         => $array['comment'],
            'subMerchant'     => $this->subMerchant($array['subMerchant'])
        );
        return $this->webServiceRequest($array, $WSRequest, self::DIRECT_API, 'doCredit');
    }