Tell me about a service that has a hard time keeping its customers happy. why do people

Fantastic news! We've Found the answer you've been seeking!

Question:

Tell me about a service that has a hard time keeping its customers happy. why do people leave? did you leave them? what can they do to bring you back (if anything)? do you feel they treated "new" customers better than you or their established customers? how does the place where you work (if you work) keep the bucket from leaking