A Letter of Credit must be executed on the letterhead of the financial institution and it must be worded as provided in the attached form Letter of Credit. A medallion signature guarantee must be completed in person because it confirms your identity, signature and legal authority to transfer securities.A bank letter is an official document from your bank that provides important information about your business' official bank account. This JPA will generally be submitted with the draft mitigation banking instrument and will be required prior to commencing regulated impacts. A bank guarantee or a letter of credit is a financial guarantee for a borrower. Both demonstrate to a third party that their invoices will be paid. The collection instruction must indicate that the collection is subject to URC 522 and give complete and precise instructions. Scan to check your refund status after filing. MARYLAND. Most forms used in the District Court are contained in this index. Draws upon Letter of Credit: The State of Maryland may make one or more draws or drafts upon this.