) A customer, or any customer if there is more than one, or any person authorized to sign checks or make withdrawals thereon may stop payment of any item payable for or drawn against such customer’s or customers’ account but the bank may disregard the same unless the order is in writing, is signed by such customer or authorized person, describes with certainty the item on which payment is to be stopped, and is received by the bank in such time and in such manner as to afford the bank a reasonable opportunity to act on it prior to the happening of any of the events described in Section 4303.

(2) An order may be disregarded by the bank six months after receipt unless renewed in writing.

(3) The bank is liable to its customer for the actual loss incurred by him resulting from the payment of an item contrary to a binding stop payment order, not exceeding the amount of the item unless the bank is guilty of negligence. The burden of establishing the fact and amount of loss resulting from the payment of an item contrary to a binding stop payment order is on the customer.