I'm on clozapine as well. I have a standing order requisition to get my blood work done.
I was 3 days late on getting my blood work last week and my pharmacist called me saying that the med company called him to let him know i hadn't got it done yet. i didn't know they kept such close tabs on things. If I were you I would go to a gp and get refills and an order for blood work. best of luck to you.