I have an old account but haven't actively played the game in years. I've just recently hit 50 for the first time, and on hitting 50 I received 400,000 enlightened exp. My friend also hit 50 the following day and received millions of points. I was able to grind to just before CP20 or so on mine and he went all the way to the 80s. I've contacted support via the ticket system and they just repeatedly tell me that I was given the correct amount. I've asked in game as well as found multiple threads pointing to this same issue with old accounts.
Really frustrating to be repeatedly told in a clearly copy/pasted response that "I received the correct amount" when I have not.