QnA currently supports the products listed in right-hand pane (more to be added) Better to reach out to subject matter experts in dedicated forums over here.
https://answers.microsoft.com/en-us/xbox/forum
(please don't forget to mark helpful replies as answer)
Not sure what the issue is but worst-case create a new account and post using this new account. Also ask here about problems with site posting.
https://answers.microsoft.com/en-us/feedback/forum/fdbk_commsite-bug