[If you intend to change your signature, you can send/give a request letter to your bank for a change in your signature. Below briefly describe on Sample. When writing a letter to the bank manager to request for a change of signature, you must be direct and concise in your letter, and of course make sure you. Sample letter to the bank manager for changing signature of a. How to write a leeter to bank for signature change? It serves the purpose. Thank you for your prompt attention to my request. My signature is mismatched with their system and so they ask me to request a letter to update my signature. Banks will not add another person to an account if the original account holder is not present. Bank Bank.