So, I literally just walked into the door, after work and first thing I did was log into GLP.
Unfortunately I was not able to speak to him today. I basically stared at my mobile all day, waiting for his secretary's call. When I didn't get a call just before 3pm, I decided to call the office.
This time a different lady picked up, and I asked for his secretary, and she told me she already left. I asked for Dr. Alaa Shaheen, and she told me he already left 2 hours ago.
I asked her if he will be back Saturday or Sunday, and she told me Sunday. I asked what time, she said he usually comes around 11am and leaves at 3pm.
So I will have to try again Sunday. Tomorrow, Friday as well as Saturday is weekend, so everything's closed. It's not unusual for many people leaving work early Thursday (except for me apparently...).

I hope I'll have more luck Sunday, I'll just try to call between 11 and 3pm as I am able to during work.

Regarding the discussions about his english, I am sure he speaks english, egyptians in general aren't great with spelling, even in arabic, so the e-mail doesn't mean his english is not good. The staff at the University speaks mostly arabic, his secretary spoke some english, the lady today only arabic.