The Issue
In PVP, you sometimes do not receive your PVP Global Leaderboard placement rewards in the mail.
As a potential workaround for the issue, if you do finish in the top 100, please try and wait at least 10 minutes after reset occurs to help prevent this issue
Please submit a ticket if you do not receive the rewards in your mail within 12 hours of weekly reset.
The Fix
Awaiting update on when fix will be released
There is no need to contact support.