I have not received any rewards from my PA alpha purchase of $90 USD. I believe there were several commanders seeing as it would include the ones of lower tiers ( Beta, etc.) The commanders I have at the moment are the Theta, Invictus, Centurion, Rallus, Aeson, Osiris and Nemicus commanders. There were others such as the progenitor commander I believe it was called and another or two? I also have the "PA Alpha Participant" badge.