Thanks. We’ve made changes to the master map now.
It should make its way into the waze app in a few days. You should delete any search history / drives to this destination as the waze app is unfortunately ‘sticky’ in that regard and won’t update locations of places it knows you’ve navigated to before.
You can tweek the roads I’ve added and help improve the Waze map directly too in the map editor at https://waze.com/editor
Guidance here Main page
Regards
Stu