You won't.
When it's fixed things will work as normal again, but on days when Rewards / Order progress is affected by serious server issues, the Rewards never show up. I wouldn't be surprised if the whole server goes down soon and you can't connect or find any games.
The only time I have seen or heard of Rewards showing up later is with the minor version of this issue when there is just a slightly delay of about 30 seconds, with the 'Rewards are taking longer than usual' message.
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