to redeem your codes, log into the game client and choose the shop and redeem option. Then select redeem codes. You can then either enter the codes manually, or use a webcam to scan the QR codes. Note, only do 10 at a time since the last time I redeemed codes, it only let you enter 10 at a time. When you finish inputting your codes, click claim now and the packs will be added to your account. To open the packs, close the redeem codes window and choose collection from the upper right corner tab. Click on packs and there you go!