Good customer service is all about bringing customers back. And about sending them away happy - happy enough to pass positive feedback about your business along to others, who may then try the product or service you offer for themselves and in their turn become repeat customers.
If you truly want to have good customer service, all you have to do is ensure that your business consistently does these things:
Answer your phone.
If you apply these eight simple rules consistently, your business will become known for its good customer service.