Base Rent, Additional Rent and any other amount due from Tenant to Landlord under this Lease is sometimes hereinafter referred to as “ Rent .” In the event any Rent is not received on or before the fifth (5th) day after the same is due, for each and every such payment, Tenant shall pay a service charge equal to ten percent (10%) of the amount not timely paid and shall bear interest from the date due, at a per annum rate equal to (the “ Default Rate ”) four (4) percentage points, plus the prime rate of JP Morgan Chase Bank (the " Prime Rate "), floating daily, until paid. If any check is returned for insufficient funds, or any other reason, Tenant shall pay to Landlord a processing fee of $100.00 plus any bank charges, in addition to any late payment fee and interest charges.