“Thank you for handling the situation in a courteous fashion. I was not in the best of moods when I called you (just in case you were distracted and didn’t notice). While I am still not happy about paying a few hundred dollars for a lost check, your professionalism, at least, makes it a little easier to bear. I am sure your job has, at times, created some unpleasantness, so the least I can do is let you know. I thank you for your time and patience.”