I recently purchased a SSL certificate for a subdomain. subdomain.mysite.com. I own the domain and everything and I use WebNames.ca to host it. I tried verifying with DNS and HTML and I followed the exact steps that was explained in this link. Even with all of that done, when I click to verify ownership, it says that they are unable to verify it. Please let me know if you need any more additional information or you could help in anyway.
If you have attempted both methods of validation listed in this article: https://ca.godaddy.com/help/verify-domain-ownership-html-or-dns-7452 and you are still unable to complete the verification process, you will need to contact our live support teams so we can investigate why those methods are failing. Our SSL teams can give you more specific information about the root cause of the failure and let you know what steps you will need to take to resolve the issue.