I just got my first certificate and was surprised to see it's a Cat 4. I'm Gold. Has anyone been successful in having their certificates upped from 4s to 5s by calling and trying? Within the next month I'll pick up the other two certificates so it would be great if it's possible to get changed to 5s. If I'm reading the posts correctly, some people are getting 5s and others (like me) are getting 4s?