This document is a letter of instruction form for specific account requests at Invesco. A Letter of Instruction to Bank is a document that sets out the specific instructions and expectations for how the bank should operate with respect.In this blog post, we'll delve into what a letter of instruction is, why it's essential, and how to craft one with finesse and ease. I submit this application to express my sincere interest in the cook position. A Letter of Instruction to Bank is a document that sets out the specific instructions and expectations for how the bank should operate with respect. I submit this application to express my sincere interest in the pantry cook position. Your job listing states that you are in search of prep cooks with knowledge of health and safety rules in the kitchen. You are not required to file this form if the interest is not received in the course of your trade or business. Applying for a job without experience may make you feel like you don't belong in the job market. How to fill out the forms; other more detailed information.