Customer service and the customer can be closed in the first place is better to let customers traveling again. To get the machine that is not available or not found, symptoms become.
Services to clients and customers can close the first time. It is better to keep customers coming again. To get the machine does not work. Or no symptoms
Customer service and can close the customer first. It is better to allow customers to travel again. In order to machines that don't work or no symptoms.