If the periodic Conduit Mortgage Payment changes due to either changed escrow requirements or a

change in a variable interest rate, or if any post-petition fees or expenses are added to the plan, and an increase in the plan payment is required as a result, the Debtor shall thereafter make such increased plan payment as is necessary. Provided, however, that the Conduit Creditor shall have complied with the requirements of the applicable Federal Rule of Bankruptcy Procedure for the allowance of such Conduit Mortgage Payment change or addition of such fees and expenses. The Chapter 13 trustee shall file notice of the required plan payment increase with the court and serve a copy of the notice on the Debtor. Service of the notice shall be made on the attorney for the Debtor through CM/ECF.