We generally decline partner applications if the the provided site URL is incorrect or the site is not functioning. The email you received would have indicated if this was the reason. Please check that your site is up and running and then resubmit your application here.
Still not finding what you need?
The Cloudflare team is here to help. 95% of questions can be answered using the search tool, but if you can’t find what you need, submit a support request.