If your landlord through some error by him or her improperly requested an amount exceeding what is the agreed monthly rent from your bank account resulting in overdraft charges to you that normally would not have occurred, the landlord is obligated to you for reimbursing you all these charges and fees.Your landlord stated that he or she would reimburse you these unexpected charges. Write the landlord an e mail reminding him or her about these charges with documentation showing such requesting reimbursement in a stated time period. Keep a copy of the letter for future reference.To prevent future problems with the landlord's pay system and your bank account, you should end the landlord's ability to get access to your bank account for automatic withdrawals for rent payments. You should personally send a check on your own to the landlord on the monthly basis.If the landlord does not refund the overdraft fees to you that were agreed to be paid to you, your option is a small claims court action against the landlord.