How To Write A Letter Asking For Child Support . Start to fill the document out with the required information. This letter serves as a formal reminder of your obligation to provide $625.00 per month to me in child support, which is due on or before the first of each month, as outlined by the terms of our finalized divorce agreement of april 1, 2013. 10 Letter of Support Samples to Support Projects or Individuals from www.doctemplates.net As of the date of this letter, i am still awaiting the payment. Click buy once the sample letter for request for reduction in child support payments is. Indicate the full name of the parent paying child support and the name and age of your child.