Maybe it's native language. People always say "和道了“ in Wuhan. It means someone get scared

如果说话人使用的是“五笔输入法”，那就是他打错了，正确的应该是“知道了”； 如果他使用的是“拼音输入法”，那我就不好说了。

若 "和道了" = get scared 應作 "嚇到了" "嚇" 別音 "賀"

maybe the mean is "i know".知道了。

It means I got it. After someboday else tells you something, you can respond: got it.(知道了.)