I did a purchase from the Dota 2 Store (online) today and got a cheap set ("Custom of Karroch Set" for Beastmaster for 1.50tl (0.75$/0.5$)).
This comment states that I had to get something else ("Wicked Bad Voodoo Set" (it costs more than my purchase lol)) as an extra, but I only got the set.
Is the extra-for-first-purchase still working? Or is it a bug that I didn't get the items?
Note: I own Dota 2 since the beta, so I have the Premium DLC from the beginning, and I think that not getting the extra stuff can be a bug.