Replying to an email with comments and that comments not adding to additional comments in hr case

Hi

I have an requirement that if HR Case is closed complete/incomplete, then if any user replied to that notification emails that reply comment should add to the additional comments section in HR Case form and case should be automatically changes to work in progress from closed complete ,so for this we have written a business rule

But in our case reply email is coming to the comments section but that comments which user has been replied in that email coming as a email but not as additional comment(as shown in the screenshot -"test"), so the case is not changing to work in progress 

Attaching the screenshots of business rule and email received in hr case form

Please help me to resolve the issue

@Dr Atul G- LNG @Maik Skoddow @Danish Bhairag2