An attorney may withdraw from representing a party only upon written motion for good cause shown. You do not write a letter to withdraw funds.You follow the process the bank requires, which is typically filling out a specific form. You really, really don't. Bank managers are not going to respond to letters like this, and typically do not care why you want to withdraw money. The Withdrawal or Refund Request is an amendment record type that allows an applicant to file a withdrawal. Just put the important information, the child's name, the date, reason for withdrawal (homeschooling) and becdone with it. San Antonio, TX 78295-1356. Your transaction will be processed within 24 hours of receipt. Find and fill out the forms you need.