public function createPaymentRequest($customerExtId, $amount, $description, $operative, $service)
    {
        return $this->createRequest('POST', '/payment', [
            'customer_ext_id' => (string) $customerExtId,
            'amount' => $amount,
            'operative' => $operative,
            'service' => $service,
            'description' => $description,
        ]);
    }