Mortgage and Insurance

I have two revolving accounts. One is a credit card and the other is a line of credit. Both accounts have been closed, and I made special agreements to pay them in a fixed amount monthly. Both accounts get reported on the credit bureaus as revolving. Is there any chance to ask the creditor to report those as installments since they are being paid in fixed payments each month and the credit lines have been closed? If so, will I see improvements in my credit score and report? Thanks.