We have express (15 user limit), here is the email I was sent:
Hello Mr. xxxxx,
Thank you for your inquiry.
As your organization already uses BlackBerry Enterprise Server - Small Business Edition, you can upgrade for free to BlackBerry Professional Software. The process is the same as adding a service pack. Whereas the Small Business BES caps the users at 15 users, BES Professional Software doesn't cap the users until 30 users are active.
Please visit the following link to begin your upgrade. https://www.blackberry.com/Downloads...153CD9CE663043
With Best Regards,