Ran out of MP3 exports on full version of Cubase Elements 8?

I recently upgraded my cubase ai8 to the full version of Cubase Elements 8. Everything seemed to work fine but now I’m being asked to buy an mp3 patch? Do I need to download and pay for this even after paying to upgrade to a full version? I was hoping that by buying the full version that there would be no limitations within the program. Please help, thanks