A fight story (separation of concern) : work vs life

IT Director (IT'D) forwarded a client message (false detection) to my whatsapp (personal number). I am sitting next to his cabin.

After an hour,

ITD : what was the issue with the client x?
Me : (proved false detection),
ITD : did you emailed client?

Me : no, don't send me these in WhatsApp, if any issues, email me since I won't check whatsapp and there is no guarantee that I will reply you back.

ITD : why, don't be negative. Either you have to or me have to do it.

Me : Tell them to email.
ITD : That is not right.

Me : I don't care if you provide support via WhatsApp. But I don't. Unless you provide a separate mobile and connection.

End of story.