Iceman
Depending on the industry, and your registrar if you are going the ISO route, you might want to consider alternatives other than surveys.
We have only a handful of people who actually deal with customers. They are all very good at filing detailed call reports. When I pointed out to one of them, a salesman, that the reports are the main way the rest of us find out what our customers are thinking, he was astounded. So were the other sales people.
I was surprised when our auditor accepted call reports as the main way we gauge customer satisfaction. We lose a numerical "count", but sometimes you just don't know what question to ask. So I feel that this method takes a little more work than a survey, but, in the end, is far superior.
Craig