Handling customers better - training for managers

Just imagine you’re very successful at handling customers.  They grow to trust you.  How do you achieve this?  You regularly ask them what, if anything, they’re unhappy  about, and you always deal with the problem, however small.
 

You can develop your ability to pay close attention to people’s concerns on our highly acclaimed London UK management training course, “Skills with People”.  It’ll help you handle customers better.
 

But how can you be sure this training in handling customers better is for you?