Enclose a copy of your voided check or pre-printed savings deposit slip with banking numbers printed on the bottom. You can write a letter, sign it and hand it to a bank professional.They will accept the letter but, may still have you sign their form. Formal Authorization Letter to Bank for Money Withdrawal Dear Sir, I am writing in context with my account number 444-555-666 with your prestigious bank. You can call us at 800-344-1029 to enroll in phone withdrawal authorization. You can also complete this form entirely online. Adarsh Sharma, my brother to withdraw cash from my bank account in the month of December 2016 as I will not be in the country for this time. A court must grant someone else the power to withdraw money and close the account. Taking away licenses, including driver's licenses, and; taking the money from your bank account ("seizure" or "levy"). You agree to hold us harmless from any loss you incur as a result of your decision to withdraw funds in the form of cash.