Customer Voice Isn't a Survey: Are You Listening to Everyone, or Just the People Who Speak the Loudest?
Most organisations will tell you they listen to their customers. Housing providers talk about resident voice. The NHS talks about patient voice. Charities talk about lived experience and service-user involvement. Councils consult residents. Businesses run customer surveys, monitor reviews and track Net Promoter Scores.
And there is now no shortage of ways for people to tell organisations what they think.
Surveys. Complaints. Google reviews. Trustpilot. Focus groups. Resident panels. Patient forums. Social media. Consultations. Customer service calls. Online communities.
We have probably never collected so much customer feedback.
But I think there is a more difficult question: Are we genuinely hearing the customer voice, or are we hearing the people who are easiest, most confident or most motivated to speak?
Because the loudest voice in the room isn't necessarily the most representative one. And silence isn't necessarily satisfaction.
The customers we hear from are a self-selecting group. Think about the last customer survey you received. Did you complete it? If you did, why?
· Perhaps the service was brilliant and you wanted to recognise somebody.
· Perhaps it was dreadful and you were furious.
· Perhaps you had a spare five minutes.
· Perhaps you always complete surveys.
But plenty of people simply delete them. That creates an obvious challenge.
The people responding aren't necessarily a miniature version of everybody using the service.
Research into customer satisfaction and survey methodology has examined precisely this problem: self-selection and non-response bias.
The same issue exists with online reviews. People who choose to post reviews aren't necessarily representative of everyone who bought the product or experienced the service.
So when somebody presents a dashboard saying: 82% of our customers are satisfied.
my next question would be: 82% of whom? Who responded? Who didn't? Who couldn't?
Who wasn't asked? And do we know anything about the experience of those people?
The loudest customer can accidentally become the customer.
There is another trap. Most organisations have customers they know particularly well. The regular attendee at the resident forum. The patient representative who sits on several committees. The customer who responds to every consultation. The person who emails the Chief Executive. The service user who is comfortable speaking at an event. The person who posts frequently on social media.
Their views matter. Sometimes enormously. But familiarity can create an interesting organisational shortcut. “Our customers are telling us...” becomes shorthand for: “The customers we regularly hear from are telling us...”
Those aren't necessarily the same thing. If twelve people attend a forum serving 5,000 customers, their experiences are valuable qualitative evidence. But they aren't automatically the voice of 5,000 people.
That doesn't mean ignoring them. It means understanding what that evidence can and cannot tell us.
Then there are the people who say nothing at all. These are the customers I find particularly interesting.
The resident who never attends a meeting. The patient who doesn't complete the survey. The customer who doesn't complain after receiving poor service. The charity beneficiary who is grateful for the support and doesn't feel comfortable criticising the organisation providing it. The person with limited digital access who never sees the online consultation. The customer who simply stops buying. The tenant who quietly loses confidence. The patient who doesn't feel anybody will listen anyway. The service user who doesn't have the confidence, language, time or energy to participate.
Their silence is data too.
It just isn't as easy to put on a dashboard.
This isn't merely theoretical. NHS England, for example, explicitly recognises the importance of reaching people and communities who are traditionally less engaged or seldom heard. Its engagement work has deliberately used community organisations, targeted engagement, interviews and small groups alongside larger surveys to understand people who might otherwise be missing from the evidence.
That principle applies far beyond healthcare. Sometimes the people organisations most need to understand are precisely the people least likely to complete the survey.
What customers say and what customers do.
There is another layer to customer voice that I think organisations sometimes overlook.
Behaviour. Customer voice isn't only what somebody tells you. It can also be what they do.
A customer tells you they're satisfied. But they have called four times about the same issue. A resident doesn't complain. But repeatedly misses appointments because they no longer believe anybody will turn up.
A customer gives you 8/10. But gradually stops using your service.
A charity beneficiary doesn't criticise the programme. But stops attending.
A patient doesn't make a complaint. But chooses another provider where that choice exists.
A customer doesn't complete your exit survey. They simply leave.
None of those behaviours gives us the complete answer. But neither does a satisfaction score.
The interesting question is what happens when we put them together.
What people say + what people do + what operational data tells us.
That is where customer insight becomes considerably more powerful. Complaints are customer voice too. I've never been convinced by organisations treating complaints and customer engagement as completely separate disciplines.
A complaint is somebody taking the time to tell you: Something about your service didn't work for me.
That is incredibly useful intelligence. Of course, the individual problem needs resolving. But collectively, complaints can tell an organisation much more. Are the same issues recurring? Are customers repeatedly chasing? Does one part of the customer journey generate disproportionate frustration? Are people complaining about the original failure, or how the organisation communicated afterwards? Do complaints contradict the satisfaction data?
And the question I am always interested in: What changed because of what those complaints taught us?
A beautifully administered complaints process that never changes the service is only doing half the job. The uncomfortable customer voice may be the most valuable one.
Good customer engagement shouldn't simply reassure an organisation that it is doing well. Occasionally, it should make people uncomfortable.
Customers may challenge something leaders genuinely believe is working. Patients may describe an experience that doesn't match the quality indicators. Residents may dislike a service performing perfectly against its internal KPIs. Service users may identify barriers the organisation never realised it had created. Customers may tell you that the process you spent twelve months redesigning is actually harder to navigate.
None of that automatically means the customer has identified the right solution. But the difference matters.
Because the gap between: what management believes; what performance data suggests; and
what customers actually experience; is often where the most useful organisational learning sits.
Customer voice shouldn't exist to reassure us. It should help us understand. Beware the lovely customer story.
Customer stories can be enormously powerful.
I've seen them completely change the atmosphere in a Board meeting. Suddenly the spreadsheet becomes a person. That matters.
But there is a governance risk here too. One brilliant customer story demonstrates that something brilliant happened for one customer. It doesn't automatically demonstrate that the service consistently produces brilliant outcomes. Likewise, one dreadful experience doesn't prove that the entire service is failing. The interesting bit comes when we triangulate.
Customer story. What happened to this person?
Customer feedback. Are other people telling us something similar?
Performance data. Does the operational evidence support it?
Complaints. Are we seeing recurring themes?
Behaviour. Are customers changing how they use the service?
Quality assurance. What does reviewing actual cases tell us?
Now we aren't simply collecting voices. We're building insight.
Don't just ask who spoke. Ask who is missing.
This might be one of the most useful questions a Board or leadership team can ask about customer insight. Not: How many people responded?; but who are we not hearing from?
Which customers rarely complain? Who doesn't complete surveys? Who doesn't attend meetings? Who struggles with our digital channels? Whose first language isn't English? Who doesn't trust us enough to be honest? Who has stopped engaging altogether? Who is dependent on our service and might therefore feel uncomfortable criticising it? Who simply has better things to do than attend one of our engagement meetings?
And then: How else could we understand their experience?
That might mean going to communities rather than expecting communities to come to us. It might mean analysing customer journeys. Looking at contact data. Reviewing abandoned transactions. Examining repeat contacts. Talking to frontline employees. Using complaints. Using observational research. Running small targeted conversations. Or deliberately seeking people whose experience is missing from the dashboard.
Different questions need different methods. And this isn't just an engagement team's job. Customer voice doesn't belong to the person with “engagement” in their job title. It belongs everywhere.
Customer service teams hear it. Frontline employees see it. Complaints teams investigate it. Data teams can identify patterns within it. Operational managers should act on it. Executives should use it when making decisions.
Boards should be asking whether all of that evidence is influencing the organisation. Because there is little point employing somebody to collect customer voice if the rest of the organisation carries on regardless.
So what should Boards actually ask for?
Not another 40-page engagement report. Not every survey comment. Not transcripts from every focus group.
Boards need insight. I would want to understand:
What are customers telling us? What are they doing? Who are we hearing from? Who aren't we hearing from? What themes are emerging across different sources? Does the customer experience match what our performance data says? What have we changed because of it? What haven't we changed, and why? Did the changes we made actually improve anything?
And:
What are our customers experiencing that we don't currently understand?
That final question might be the most important. Close the loop.
Too much customer engagement still looks something like:
ASK → LISTEN → REPORT
I think mature customer voice looks more like:
ASK → LISTEN → UNDERSTAND → DECIDE → ACT → EXPLAIN → CHECK
And perhaps there is another step before all of those:
ASK WHO IS MISSING.
Because organisations can become extremely good at listening to the people who are already talking to them. The harder task is understanding everybody else.
So whether we're talking about residents, patients, customers, tenants, citizens, service users or beneficiaries, my question to a Board would be the same: Show me what is different in this organisation today because of what your customers have told you.
And then I would add: Now show me how you know you haven't only listened to the loudest ones.
Because customer voice isn't something an organisation collects. It is something an organisation actively seeks, understands and uses.
Sources and further reading
Griffin, A. & Hauser, J.R. (1993), “The Voice of the Customer”, Marketing Science
https://www.researchgate.net/publication/313086185_The_voice_of_the_customer
Rybak, A. (2023), PLOS ONE, “Survey mode and nonresponse bias”
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0283092
Zihayat et al. (2021), Journal of Business Research, “Leveraging non-respondent data in customer satisfaction modeling”
https://www.sciencedirect.com/science/article/abs/pii/S0148296321004227
Han, S. & Anderson, C.K. (2025), “The Platform Matters: Selection and Measurement Bias in Online Reviews”
https://journals.sagepub.com/doi/10.1177/19389655251327536
NHS England, Equality Objectives Programme Engagement Report
https://www.england.nhs.uk/long-read/nhs-england-equality-objectives-programme-engagement-report-2022-23/
NHS England, National Public Engagement on Data
https://digital.nhs.uk/data-and-information/keeping-data-safe-and-benefitting-the-public/national-public-engagement-in-the-use-of-health-and-care-data