hi i used steam to buy zen a long time ago then i found out if you buy zen through arc website it is cheeper eg 5000 zen from steam costs £40 but if i get it thriugh arc i get 5300 for £33 so never use steam to buy zen.
I bought zen in game through the c-store using my steam wallet 2 days ago but now today with the promotion i can not everytime i try i get transaction failed for an unknown reason!!!