For more information about going to court including how to fill out and file forms, call or text Illinois Court Help at 833-411-1121 or go to ilcourthelp.gov. Use this form for specific account requests.If required, there is a designated section on this form for a Medallion Signature Guarantee Stamp. A letter of instruction, also known as a letter of intent, is an estate planning document that provides a variety of information. Fill out the Citation to Discover Assets to Debtor's Bank following the instructions on the form. You may need to write a Letter of Instruction requesting that the name on your account be changed to the name of your Trust. A letter of instruction is a document that lists all of your important financial account information in one place. Letter Issued on Bank-Fintech Partnerships. Bank letterhead; Account number; Routing number; Business name. The Illinois Department of Revenue (IDOR) sends letters and notices to request additional information and support for information you report on your tax return.