Rent is late ...should I pursue it?

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Four tenants pay the total rent. It was set up ( NOT by me) for them to pay 1/4 of the rent each ( which I thought is ridiculous. I would have set it up for one of the tenants represents the others and pays the total rent). I sent them the website to pay rent. This is the first time they used the website. One of them was late so the late fee applies to all 4 tenants( House is rent as a whole). Should I pursue the late fee? What would be the best action? Any advice/input would be much appreciated