Thank you for reaching out to the Community! I'm happy to provide some assistance with your domain, to ensure this gets resolved.
As I was able to verify that the domains DNS Records are all correctly pointing to Shopify, I'd encourage you to connect with us directly. This will allow our support team to take a closer look, as I wouldn't have access to any account details through the Community. They will be able to get you authenticated and share more details on why the domain is still pending.