Child support and EI?

My recent ex husband is not working. He is collectin EI (employment insurance) and he gets about $1200 per month. I take care of our daughter. He has supervised visits a couple hours per day three times a week. He has no bills, because he has no home. He lives with a woman who is on disability and who is also getting help from Ontario Housing (she only has to pay $120 per month for rent), and he is not suppose to be living there because of it. They are defrauding the government. Unfortunately that is besides the point for me. He only gives me $87 for child support. That doesn't even cover her food for lunches at school for the month. Can the government make him give me more money? Anyone else had similar experience? Thank you. Going thru quite a trying time right now.