Here are some customer service quality slogans that I like:

Customer Service Slogans

Here is a simple but powerful rule – always give people more than what they expect to get. ~ Nelson Boswell

In business you get what you want by giving other people what they want. ~ Alice Macdougall

Quality in a service or product is not what you put into it. It is what the client or customer gets out of it. ~ Peter Drucker

Do what you do so well that they will want to see it again and bring their friends. ~ Walt Disney

If we don’t take care of our customers, someone else will. ~ Unknown

Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong. ~ Donald Porter

The goal as a company is to have customer service that is not just the best, but legendary. ~ Sam Walton

Good service is to spoil the customer, to make them highly difficult, demanding & unreasonable, and they will then become highly dependent on us. ~ Dick NG