MRMC will invoice the Company in advance for the (a) Monthly Fee and (b) Direct Expenses, if any, that are incurred or anticipated to be incurred for each month. The Company will pay to MRMC all amounts due under the invoice on or before the first of the month. Direct Expenses will be estimated but trued up at the end of any month, with the payment of any shortage due from the Company to MRMC, or any excess due from MRMC to Company, to be paid within ten days of the end of the month.