I need a Statement rather than an Invoive

I need a Statement rather than an Invoive

Hello,

I would like to create a statement that would show the customers amount due (on a loan) then bill them monthly for the payment due and of course subtract that and have a new balance each month.

These customers purchased a product through a personal loan and I need a way to bill them for the loan, how can I create a custom statement?

Can you suggest a designer who I can hire to create a custom form for me?

Thanks,
Wendy