How long did it take for your reward to arrive?

i ordered it three days ago but it still did not arrive

It should take about a week or so, depends upon reward to reward, like the steam wallet cards took just 5 hours while csgo skins often take 3 days to a week

I guess you didn't read the "fine print". It can take up to 31 days to arrive if they don't have any in stock right now. Either that or if GH can't procure one for you, they will give you, your SG back.

Probably are out of stock. Depends on the game.