A customer is invoiced twice. A delivery arrives on the wrong day. A quote contains last year's price. In a small company these things are not scandals, and the customer usually understands that people make mistakes. What they remember is how quickly you told them and how you handled it.
Most of the damage comes from the response, not from the error. The reply is late, it is vague, it sounds like a template or it explains why it was not really our fault. This article gives a short routine you can agree once and then use every time.
Tell them first
If you know about a mistake before the customer does, contact them that day. A customer who hears "we noticed that your order was packed with the wrong size, and the right one is already on its way" feels looked after. A customer who has to write "why did this happen?" feels ignored, even if the fix is identical.
Use the channel they normally use. A mistake that costs them money or time deserves a phone call, followed by a short email so there is a written record. A small slip, such as a typo in a price list, can be an email only.
If the customer found the mistake first, answer within the same working day, even if you do not yet know the cause. "We have seen your message, we are looking into it and you will hear from us by Thursday noon" is a complete and respectable reply. Keep that promise. If you already handle enquiries on a fixed schedule, as described in handling website enquiries in one working day, put complaints on the same schedule.
Four parts of a good apology
Write the message in this order. Four to six sentences are usually enough.
- What happened, in plain words. "We sent the invoice for March twice." Do not soften it with phrases like "an issue occurred" or "there may have been a misunderstanding".
- What it cost them. "You may have paid the second one or had to check it with your accountant." Showing that you understand the effect is the difference between an apology and a formality.
- What you are doing now. "The second invoice is cancelled and a credit note is attached." Give a date for anything that is still open.
- What changes. One sentence, and only if it is true: "From now on invoices are sent from the order record only, so a repeat is not possible."
Say "sorry" once, clearly, near the start. Repeating it five times makes the message about your feelings rather than their problem.
What to leave out
- Blame. "Our new system caused this" and "the courier delayed it" may be accurate, but the customer dealt with you, not with your supplier.
- Long explanations. Give the cause in one sentence if they ask for it. A page of detail reads as an excuse.
- Conditions. "We are sorry if you were inconvenienced" apologises for their reaction, not for your mistake.
- Promises you cannot check. "This will never happen again" is risky. "We have added a check so that this particular error is caught" is something you can stand behind.
Saying sorry does not mean admitting legal liability. In England and Wales, the Compensation Act 2006 says that an apology, an offer of treatment or other redress does not of itself amount to an admission of negligence or breach of statutory duty. If the mistake is serious or a dispute is likely, still ask an adviser before you write anything beyond the facts and the fix.
Decide what you can offer
The offer should match the harm. Three levels cover most cases:
- Fix only. The mistake cost the customer little or nothing: a corrected document, a replacement item, a cancelled duplicate invoice.
- Fix and a gesture. The customer lost time or had extra work: a small discount on the next order, free delivery, a short call from the owner.
- Fix and compensation. The customer lost money: reimburse the documented cost, or credit the difference. Returns and credits should follow a rule you already have; the one-page rule set for returns, refunds and credit notes is a good base.
Write down in advance what each person may offer without asking. For example, anyone who deals with customers can correct the error and offer up to a set amount; anything above it goes to the owner the same day. Without this limit people either give away too much or wait for approval while the customer waits for an answer.
Where the customer bought goods or services as a consumer in the UK, their rights are separate from your goodwill. Services must be performed with reasonable care and skill, and a repeat performance or a price reduction can be due when they are not. Your offer should never be less than what the law already gives them.
Do not repeat the failure while apologising
Before you send the message, check three things:
- Is the corrected figure, date or document really correct? A second mistake in the apology is far worse than the first.
- Does every person who deals with this customer know what was promised? Tell them, so the customer does not have to explain the situation again.
- Is the follow-up in the calendar? If you promised a call on Thursday, someone owns that call.
Record it in one line
An apology that ends with the email is half a job. The other half is learning from it, which takes about two minutes per mistake. Keep one shared sheet with these columns:
| Date | Customer | What went wrong | Cause | What we offered | Fix to prevent it | Owner | Done? |
|---|
Be honest in the "Cause" column. Usually it is a missing check, an unclear handover or a figure typed by hand in two places; rarely is it one careless person. Aim the fix at the process: a checklist item, a locked field, a second pair of eyes for documents that leave the company.
Once a month, spend fifteen minutes with the list. If the same cause appears three times, that is your next improvement. If you want a more complete record of customer problems with owners and response times, the customer complaint log is the next step; for larger incidents, a short blameless review works well.
A short example
Subject: Your March invoice was sent twice
"Hello Anna, we sent you the invoice for March twice today, numbers 1042 and 1043. That was our mistake, and I am sorry. If you have already paid or forwarded both, please ignore 1043; it is cancelled and a credit note is attached. If you paid it, we will refund it by Friday. From now on invoices are issued only from the order record, so a duplicate cannot be created. I will call you on Thursday morning to be sure everything is in order. Tomas"
It is short, specific and signed by a person. It has a date for the open item, and the change is one the company can keep.
What to do this week
Write three short templates for your most likely mistakes (a wrong invoice, a late delivery, a wrong quote) using the four parts above. Agree what each person may offer without approval. Create the one-line record sheet and add the last mistake you remember. The next time something goes wrong, you will already have a routine instead of an awkward evening.