private function setProperGateway()
    {
        if (isset($this->config['dry_run'])) {
            if ($this->config['dry_run']) {
                $this->setUrl($this->sandboxUrl);
                $this->feedbackUrl = $this->feedbackSandboxUrl;

            } else {
                $this->setUrl($this->productionUrl);
                $this->feedbackUrl = $this->feedbackProductionUrl;
            }
        }
    }