I would ring Claudia (his receptionist) and ask her of Dr. Lok has time to speak to you. You may end up getting charged something for this, but i know that he does do phone consultations. I'm sure if you explain the situation they will be accommodating. Just tell them that you are unsure of what to do.

My EPU was a Saturday. No dramas there - Dr. Lok was there for that and then my transfer was a Thursday and he was there for that too. So, I can't really answer that one, hun. Sorry