In summary, you can't read any replies in AW if profile has been deleted permanently. Should you have phone numbers given to you by PM, store them on your punting mobile, or note them down somewhere safe. This can be annoying if someone replied to you and their profile was permanently deleted BEFORE you had a chance to read their email!!!
The above also applies to profiles where the WG de-activates her profile. Whilst her profile is de-activated, you will not be able to read any of her replies. If and when she activates her profile again, you can then read all the emails that she sent to you.