I am not sure I follow.
Could you be more specific? (language barrier here :/ ) If i understand correctly, your advice is to delete TAB that somehow showed in TOC. If i do that, and then center the number of the page to the right.. it will make this (see attachment).
It could work, if i chose not to use underline. But in my case, it still looks stupid.
OR.. I don't understand you correctly and your solution is different.
Edit: now i realized that this "scenario" is the same as i posted in my first screenshot
So the problem here is the same as the problem in first post. The doc file attached is just "one step back" in my trying to fix the issue.