@MicrosoftHelps Tried calling again today, total waste of time talking to support about this. Single sign-on across microsoft's websites is inconsistent/broken in certain cases, users beware!
Well, I just interacted with xbox account support and webpages. Worst system I've interacted with this year. Gamertag change for a child's account incorrectly applied to mine, support hangs up 3 times, no more support for the day? Limit reached? @XboxSupport@MicrosoftHelps