I subscribed to Curse Premium for added client functionality, but after confirming my membership the client is not updated.  Still the regular version with premium funcitons grayed out.

There is no clear explanation on how to upgrade the client.  It just says go the premium page.  How about adding some intuitiveness to the process guys.

How do I upgrade?

There is a message at the end of the signup process, but obviously we need to increase its visibility.

There is no 'premium client' you just need to log back into the client, or close it and restart it.  To log back in, select File->Login, enter your credentials and click the button.  At that point in should switch into premium mode.

Sorry for the confusion.

I'm a premium client as well and it is not recognizing this when I open and try updating all my addons, it keeps asking me if I'm interesting in premium.. I've logged out and back in and even reinstalled... what is going on?

Are you sure you're using the same account when logging into the client?

i am having the same issue, have tried to login several times but it will not update to premium.