Now that the Error code has changed, It's quite annoying how people can't get on xbox live. We've been told the update is coming, We've been told they are fixing the bug,
Firstly, I checked up the Error code 8012000A and this what came up http://support.xbox.com/en-GB/xbox-360/xbox-live/error-code-8015000a
Secondly, I believe that many people won't be playing or watching anything online "Today" And maybe "Tomorrow"
Thirdly, Many people has asked are still waiting for the replied from you Microsoft and not from people who doesn't actually work at your company.