DT Personal upgrading to DT/DN pro (infoworker pro?)

I entered my registration code for DT personal into the upgrade page and found that I can upgrade to DT Pro for $30 or Infoworker pro for $50. However, after I got to the next page, the link only show the upgrade to DT pro but not the infoworker pro pack. Any clue?
:frowning:

Could you please send us your license code and a few lines where exactly this happens to sales(at)devontechnologies.com? Thank you!