Unknown or unavailable is not a zero score or proof that the number is banned. A health estimate needs enough eligible observations, and its time range, coverage, and reliability matter. It is a diagnostic signal, not a delivery or account-safety guarantee.
Review the displayed period and any unavailable reason. Compare the actual connection or send error separately. If the view appears inconsistent, report the number reference, time, and visible health details to support. Do not send message history to fill the gap; health does not require customer conversation content.