Got this problem too. Don't have any tickets pending. Checked twitter and someone mentioned the same problem and they're looking into it. I can log in and play, just not access the gateway from a browser.
If ign prime is handing out keys for cbw4 then I should have one spare key since I have a founders key and also have IGN prime acct. But they usually don't announce it till mid week or so.
only problem with that is unless you do dps full time, you get little glory for heals..yeah you help everyone on your team get glory by healing them and get lots of assists but that doesnt translate into glory for you.