I did not receive, got the email, and got a payout from another stock.
I see your address and amount in the payments made. They are not yet confirmed...
2 of them are still not confirmed, so if you don't allow incoming transactions (have forwarded port 8333) there is the possibility that you only see it as soon as it is included in a block.
Try checking the 3 transactions for you address.
The 2nd two test payments still haven't confirmed - next time will use "generous" (.001) instead of "normal" (.0005) fee. Hopefully that will help.