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At the main menu screen in the top right there is a notification that says: Sign up for your avatar costume! I clicked it, filled out the information but it's still there. In fact, I filled it out a few weeks ago and still there today, filled it again, still there and I haven't received any...

I've received an e-mail advising me that I need to sign-up to continue receiving the newsletter (presumably this is all thanks to the new GDPR laws). As a token of thanks for signing up, those that do will receive a free gift. I play on the Xbox, which e-mail account should I use? I have a...