I think VOIPo's policy is fine.

I wish my city utilities were as forgiving. When they bill, hope your check doesn't get lost/delayed in the mail as your only warning is when the electric and water are cutoff a few days after the due date. My pay service reimbursed me the $78 disconnect/connect/late charges, but doesn't help with a night without power and water. It doesn't matter that I lived here 10 years without ever a late payment. I guess a sign of the times. Now I call every month to verify they received my payment as they don't have any auto pay services.