GACO: semi-working conditional fee

function authorize_less($available_gateways) {
    $maximum = 0;
    if ( WC()->cart->total < $maximum ) {
    unset( $available_gateways['authorizenet'] );
    }
    return $available_gateways;
}
add_filter( 'woocommerce_available_payment_gateways', 'authorize_less');
add_action( 'woocommerce_cart_calculate_fees' , 'authorize_less' );
add_action( 'woocommerce_after_cart_item_quantity_update', 'authorize_less' );



function authorize_more($available_gateways) {
    $maximum = 0;
    if ( WC()->cart->total > $maximum ) {
    unset( $available_gateways['cod'] );
    }
    return $available_gateways;
}
add_filter( 'woocommerce_available_payment_gateways', 'authorize_more');
add_action( 'woocommerce_cart_calculate_fees' , 'authorize_more' );
add_action( 'woocommerce_removed_coupon', 'authorize_more' );