If your checkout is a little grayed out, it usually means you may have some information missing.
If this doesn't resolve your issues, using a different device/browser may help. Our website is designed to work with Internet Explorer, but if you're using an older version of Internet Explorer, sometimes certain aspects of checkout won't display or function properly. Please create a Support Ticket and let us know about the issue so we can look into it further.
Lastly, you can also try and check out using PayPal to see if that helps.