Hi,
I'm not sure what you exactly mean. After purchase you can login on Acyba.com and download your Enterprise version so you can install it on your site. If you can;'t login or download the Enterprise version there is a problem with your account.
Also, you need to connect the domain you are installing Acymailing to your license. You can do this in your account on Acyba's website.
If the above is done and Acymailing is still saying you have the Starter version, please click on the refresh icon in the top right corner. It is the first icon next to your Acymailing version number.