Please see the patch notes. The 1600 is the new first-purchase bonus which we reset for everyone (gone next time you login after another purchase). There 24-hour card is a new promotion for future purchases.
for 1 time buys before i never get bonus too and this game never give free gold make another player run and not play any more.may be the longer play for new only 2 month (run out gold).if want keep this game run and more player i thing better give bonus more for gold( any time buy )