How to Handle a Client Complaint (and Keep the Client)

Why complaints are worth handling well

A complaint is a client telling you something has gone wrong while they're still willing to talk about it. A client who's unhappy and says nothing may simply not come back. Handled well, a complaint can leave a client more confident in you than before, because they've seen what happens when something goes wrong.

In a small business, complaints are handled personally. That's a strength when the reply is quick and calm, and a weakness when it turns defensive. Which way it goes often depends on whether anyone thought about it before the first email arrived.

The five steps

Select each step to see what it involves.

What to say in the first reply

The first reply sets the tone for everything after it. Keep it short and leave the explanation for later.

Thanks for letting me know, and I'm sorry this has caused you trouble. I'm looking into it now and I'll come back to you by 12 noon on Monday with what happened and what we'll do about it. If anything changes before then, I'll let you know.

It says you've heard, it names a time, and it doesn't argue. If you can fix it faster, do. If you can't, a clear time is better than a vague "soon".

Avoid explaining why it wasn't your fault in the first message, even if it wasn't. You don't have the full picture yet, and it reads as defensive.

If it comes in by phone

Let them finish before you answer anything. Take notes, including their words for what went wrong and what they'd like to happen. Don't promise a fix on the spot unless you're sure you can deliver it. Before the call ends, say what you'll do next and when.

Then send a short email the same day: what they told you, what you'll do and by when. You both have the same record, and the complaint goes in the log like any other.

If it's a public review

Reply in public once, briefly and calmly. Thank them, say you're sorry they've had a poor experience, and invite them to contact a named person directly. Keep the details and the facts out of the public reply, even if the review is wrong. Anyone reading it later will see how you respond, and a calm reply does more for you than a correction.

Then handle it privately through the same five steps. If a review is false or breaks the site's rules, check whether the site lets you report it, and use that instead of arguing in the replies.

Who should own complaints

Pick one person who handles every complaint, and a back-up for when they're away. In a small business that's often the owner. Where you can, it shouldn't be the person the complaint is about. They're too close to it, and the client may want someone else to hear them.

Write down three things alongside the name: how complaints reach that person, how quickly they acknowledge, and where complaints are logged. A shared inbox that "someone" checks is how a complaint gets missed for a week.

Some sectors have their own rules. In the UK, for example, firms regulated by the Financial Conduct Authority must have procedures for handling complaints reasonably and promptly. Check whether anything like that applies to you. This post isn't legal advice.

When it isn't straightforward

When the complaint is unfair or wrong

Sometimes you look into it and the client is mistaken. The figure they're upset about was correct, or the thing they say was missed was never part of the agreement. Go through the same steps anyway. Acknowledge, check the facts properly, then explain calmly and show your working. A made-up example:

Thanks for your patience while I looked into this. I've checked the report against the figures you sent on 3 March, and the totals match. I've attached both so you can compare them. I think the difference comes from refunds being counted in March, not February. Happy to go through it on a call, and if I've misunderstood something, I'll put it right.

Be specific, attach the evidence and leave the door open. If part of it was your fault, say which part. If the complaint is really about work outside the agreed scope, the replies in the change request process work here too. If one client complains unfairly again and again, that needs a different conversation, about the relationship itself. The rescue call plan covers it.

Refund, credit or redo?

Match the remedy to the problem:

• Redo or fix the work when it can be put right and the client still wants it. This is usually the first thing to offer.
• A credit against the next invoice when the work can't be put right in time, or the mistake cost the client time or embarrassment, and you both want to carry on working together.
• A partial or full refund when the work didn't deliver what was agreed and can't be rescued, or the client wants to end the relationship. A clean refund closes the matter. Arguing over money for work that didn't do its job rarely helps your name.
• The fix and an apology, nothing more, when the cause was small and put right quickly. Not every complaint needs compensation, and offering it every time can teach clients that complaining pays.

Check your terms before you offer anything, because they may already say what happens when work falls short. Then confirm the remedy in writing, with any amount, and say whether it settles the complaint.

A typical example

Here is a made-up example. A small marketing agency sends a client a monthly report with last month's figures pasted in by mistake. The client spots it after sharing it with their directors and emails, upset.

The account manager replies within the hour: sorry, looking into it, corrected report by midday tomorrow. The corrected report arrives at 10am, with a short note saying what went wrong (the figures were copied from the previous month's file) and what's changed (a second person now checks the numbers before anything goes out). A week later the account manager asks whether the directors had any questions. The client renews at the end of the quarter, and the second check stays in the reporting process.

What to record for each complaint

A log doesn't need to be more than a table. One row per complaint:

The last column matters most. A log where that column stays empty is only a list of apologies.

Common mistakes

Arguing in the first reply. Even if you're right, the client hasn't had a chance to feel heard yet.

Promising a time and missing it. A missed update makes the original problem feel worse. Give a time you can keep.

Fixing it quietly. If you fix the problem without telling the client what happened, they can't trust it won't happen again.

Not writing it down. Without a log, the same problem can come back with a different client, and nobody spots the pattern.

Handling it differently each time. A one-page process gives every complaint the same care, whoever picks it up. If a client's patience is running out more generally, see when a client relationship is going wrong. And regular quarterly client reviews give clients a planned place to raise smaller problems before they become complaints.

The steps for starting a client relationship well are in the client onboarding process.