Try following code
add_filter('fep_get_user_option', function( $value, $option, $default, $userid ){
global $ultimatemember;
if( ! $userid )
$userid = get_current_user_id();
if( 'allow_ann' == $option && ! $ultimatemember->user()->is_approved( $userid ) ){
$value = 0;
}
return $value;
}, 10, 4);