What is a sample of a letter to withdraw money from a bank? The account is in the name of an institution (a school).Contact your bank for a power of attorney form. Securely authorize someone to claim money from your bank account with our customizable Authorization Letter template. Forms ; How To Commence A Civil Action. Clearly state that you are authorizing a specific individual to act on your behalf for certain banking activities. With our customizable Bank Authorization Letter For Bank Transactions template, you can quickly and easily create an authorised letter in three simple steps. (___) to confirm the following details that I provided to ______. I regret to inform you that I could not collect the loan documents from the bank manager this week as I had a family emergency. Authorize someone to make a withdrawal.