I'm having the same issues, both with purchasing and with using. More than half of time the dashboard just gives an error: An unexpected error has occurred. Please try again later. I'm not sure if Docusign is a crap product or just the Proseries interface.

And to top it off, I did one request where the email was wrong and I couldn't correct it. After talking with several people at Docusign, it turns out that because I'm using the service through Proseries, I am not the admin. WTF?!?!?!? The agent at Docusign said I would need to get Proseries to change the admin settings because they couldn't. So beware and check your email addresses before requesting an esignature.