private function holder()
    {
        $this->_paymentRequest->setHolder()->setName($this->_data['holder']['name']);
        $this->_paymentRequest->setHolder()->setBirthdate($this->_data['holder']['birth_date']);
        $this->_paymentRequest->setHolder()->setDocument()->withParameters(
            $this->_data['sender_document']['type'],
            $this->_data['sender_document']['number']
        );
        $this->setHolderPhone();
    }