Every business owner I’ve worked with has a handful of clients they mention in passing. The one who came in stressed and left delighted. The one who was quietly comparing you to what they were already getting elsewhere, and chose you anyway. The one who arrived curious rather than desperate, and left more impressed than they expected to be. And the one who’s told three people down the pub about you without you asking. They’ve just never got round to writing any of it down.
That’s what separates a business with proof from one that’s just asking you to trust them. Here’s how to fix that.
A testimonial tells customers you’re good. A case story shows them how
A testimonial says. “Brilliant service, would recommend.” This is nice to receive, and of course, it’s true. But it tells your reader nothing about why, or what you did to earn it.
A case story is longer, and it shows the problem your client walked in with, what you actually did about it, and where they ended up. One is a compliment, the other is evidence.
You’ll hear it called different things: a case study, a customer story, a success story. But they all mean the same thing. For this article, we’ll call it a case story.
Take a Lewes furniture restorer. A testimonial says: “Beautiful work, I’m so pleased.” A case story would say: a client inherited her grandmother’s writing desk, water-damaged and missing a leg; she thought it was beyond saving. Six weeks later it’s back in her hallway, and she cried when she saw it. That’s the version a reader remembers. If you’re not sure where to start, simply ask a client who’s thanked you what would have happened if you hadn’t sorted it for them. Their answer is usually the story.
You’re skipping the part that makes it a story
Every case story worth reading follows the same shape: the challenge, the solution, the results.
The challenge is what your client couldn’t solve alone, stated in plain language, so a reader with the same problem thinks “oh, that’s me.” The solution is what you did, step by step; it’s not a vague description of your service. The results are specific. They include numbers, the time saved, or a problem that hasn’t come back. If you don’t have a number yet, ask your client what’s changed, even something as simple as “what do you no longer worry about?” counts.
If you skip any one of the three, the story goes flat. A Rye bakery that simply says “we helped a café increase orders” hasn’t told a story. However, one that explains the café was losing weekend trade to a chain down the road, so they built a Saturday-only sourdough range with a two-week waiting list by month three has.
You keep telling the story yourself
The most convincing sentence in your marketing rarely comes from you. It comes from someone else describing, in their own words, what it’s like working with you.
This is why a case story needs two voices, not one. You set the scene and explain what was done. But when your client says, in their own words, what it felt like to finally sort the problem that had been frustrating them for months, that’s the sentence a stranger believes. Think of a Chichester physiotherapy client who can now walk without pain after eight months of barely walking at all. The physio can describe the recovery plan. But only the client can describe what that first pain-free morning really felt like. If a client struggles to find the words, just ask them what they’d tell a nervous friend thinking about coming to you.
You’re leaving out the details that makes it believable
Vague praise can be forgettable, but using precise details tends to stick.
“Great to work with” could describe almost anyone. “Got red wine out of a wedding dress the morning of the reception, with ninety minutes to spare before the photos” could only describe one business, and it happens to be a East Grinstead’s dry cleaner’s finest hour. So, ask your client for numbers, for dates and the exact moment when things turned. If your client can’t quite recall, ask them what they’d tell someone standing exactly where they once stood.
You only have to write it once
The same case story can sit on your homepage, open a proposal, anchor a social media post, and give an unsure new client something concrete to read before they ring you.
Picture a Hastings brewery whose one taproom launch story ends up doing three jobs: it’s the centrepiece of their website, it goes into a funding application, and a version of it also lands in the local paper. Same story, serving three different jobs. You write it once, and it keeps earning for you.
You already have the story, you just haven’t asked for it
You already know which client to start with: it’s the one whose result still makes you smile, or the one who said something you haven’t forgotten.
Ask them what things looked like before you got involved, and not just what you did. Ask them what was different by Friday that wasn’t true on the Monday before. The struggle is often more interesting than the solution, and it’s usually the part business owners forget to include.
You don’t need a dozen case stories. You just need one, told well, doing the job of a hundred sales conversations you’re not in the room for.
Next time: how to write a blog your readers will finish, and the three habits that lose readers in the first few lines.
About Kazi Quinton
Kazi is an award-winning copywriter and the No.1 bestselling author of HUMANITY 2.0: Redefining Humanity in The Age of Artificial Intelligence. She joins Sussex Exclusive as a columnist. As founder of InkWiseCopy.com and MyCaseStory.com, Kazi works with businesses across the UK and internationally to help them find their voice and use it well.
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