One thing that drives me nuts is someone not returning the call. Now, if someone was in a serious accident or was called into an emergency meeting, I would understand a delay in responding. But I have no sympathy for those who lack the professionalism, organizational skill or some other dysfunction.
I find it ironic that organizations that tout their "customer-centric" culture are some of the greatest abusers of responding in a timely manner. Maybe its arrogance or complacency. Just the same, the taste left in the mouth of the person/client waiting to hear is bitter. Here’s a clue; if you can’t do the small things (responding for example), then you won’t be able to do the big things.
If you’re not returning a customer’s call, then you must be confused as to how you make money. If it is your lead or contact, then you must not care about your future opportunities.
Do your business a favor and just return the call.