Read the post again. The author entered LOS on 9th June and hasn't left since. He doesn't mention a re-entry permit. His 90 days expires on Saturday 7th, so he needs to do a new 90 day report on Friday 6th....or attend his appointment for extension on 9th and risk a small 3 day overstay fine. Because his 90 day expiry falls on Saturday and his appointment is Monday, they may overlook it.