All invoices are due and payable within thirty (30) days of invoice date (“Payment Deadline”).</p> <p>7.3 Non-recurring Charges: Non-recurring Charges are due and payable on the Start of Service Date or as otherwise billed by the Company.</p> <p>7.4 Monthly Recurring Charges: Monthly Recurring Charges are fixed in amount, not dependent on usage, and billed in advance.