Final answer:
When a credit card machine breaks, apologize to the customers, offer alternative payment methods, or suggest they return later once the machine is fixed.
Step-by-step explanation:
When a credit card machine is broken, it's important to communicate the issue clearly and professionally to the customers. Start by apologizing for the inconvenience and provide alternative payment options if available, such as cash, check, or using another terminal if one is available.
If no other options are feasible, kindly explain the situation and suggest they return at a later time or leave their items and contact information so they can be notified when the machine is functioning again.