The only way to receive your in-game code is to wait until your HeroMart order arrives at your shipping address for the order as any codes are printed on your packing slip. We cannot give you an in-game code beforehand. You can only receive an in-game code with its associated HeroMart product, it is not available separately.
Please note - if you purposefully provide HeroMart with an incorrect/false shipping address just so you can request to have your code emailed, then your order will be canceled (as long as it wasn't shipped yet) and if you do attempt this again, you may be blocked from ordering again.