John came as the problem I had was not resolved completely on his previous visit (connecting various hardware to an external speaker by bluetooth). He was able on a return visit to identify the problem which he said was a hardware issue and therefore I would have to pay. I did pay but remain unhappy with your service especially as, being a non technical person, the problem was not obvious to me and I had done all the things he told me to do. Also he was already in the street and it took about 10 minutes to identify and fix the problem. As a result I will not be using your services again after being a customer for many years, nor will I recommend you to others as I have done in the past. I would have thought that customer satisfaction would be more important to you than a few dollars.