How to test written English for customer service jobs

For a chat or email agent, written English is most of the job. But the English you need is not exam English. Your customer has to understand the reply the first time, and feel that a careful person wrote it. That is a narrower thing to test, and three short exercises can show it.

What good enough looks like

Decide what you are testing before you read any answers. For customer service, it comes down to this.

What matters:

• The meaning is right. "Your refund has been sent" and "Your refund will be sent" are different promises.
• It is clear. Short sentences, the answer first, one idea per paragraph.
• The tone fits. Warm with an upset customer, brief with a busy one.
• The details are copied right. Names, order numbers, dates and links.
• They read the customer correctly. A perfect answer to the wrong question is still wrong.

What matters less:

• A small typo that does not change the meaning.
• British or American spelling. Pick one for your team and teach it.
• Plain, simple words. Simple is good in support.
• Phrases that are normal English in one country and odd in another, such as "revert to you" for "reply to you." Teach your preferred wording in the first week.

What hurts:

• Grammar that changes the meaning, or makes the customer read twice.
• Long walls of text.
• Wording that sounds cold or rude, even by accident.

Exercise 1: Read and answer

Reading is half of written support. Give the applicant a customer message with the real question near the end, and ask: "In your own words, list everything this customer wants."

Hi, so I ordered the grey sofa cover two weeks ago and the color is a bit lighter than the picture but honestly it's fine, I'll keep it. My husband likes it. Anyway the reason I'm writing is that I'm moving next month, so can you send my second order to the new address? It's the cushions, ordered Sunday. Also is there a way to stop all the promo emails? Thanks, Leah

A strong answer lists two things: send the cushions order to her new address, and stop the promo emails. It notes that she is keeping the sofa cover, so there is nothing to fix there.

A weak answer starts on the color problem, which she has already said is fine, or misses the emails.

Exercise 2: Fix this reply

Give a draft reply with several problems, and ask the applicant to rewrite it so they would be happy to send it. This shows whether they can see problems in writing, which is what they will need to do with their own replies.

Draft to fix:

Dear Customer,

Thank you for contacting us. We have checked your order and it shows
that it was delivered on Tuesday, therefore we are unable to issue a
refund as the courier has confirmed delivery to the address you
provided and you may want to check with your neighbors or family as
parcels are sometimes left with them. Your order will be refund once
it is found. Thank you for your understanding.

Regards

The customer's name is Ben, and his message said the parcel was not at his door and his neighbors do not have it. Your fact sheet says: when tracking shows delivered but the customer has nothing, open a claim with the carrier, which takes up to five business days.

A strong rewrite looks something like this:

Hi Ben,

I'm sorry your parcel isn't there. The tracking says it was delivered
on Tuesday, so I've opened a claim with the courier to find out what
happened.

They usually reply within five business days. As soon as I hear from
them, I'll email you with what happens next, whether that's a found
parcel or a replacement.

Best,
Sam

Count what they fixed: the missing name, the one long sentence, "will be refund," which is a grammar slip and a strange promise at once, the cold close, the refusal with no next step, and asking Ben to check with his neighbors when he already has. A strong applicant fixes most of these without being told what to look for.

Exercise 3: Say it plainly

Give a policy written in stiff language, and ask the applicant to explain it to a customer in three or four short sentences.

Policy: Subscription fees are non-refundable save where cancellation is
effected within fourteen (14) calendar days of the initial billing date,
in which case a pro-rated refund shall be issued to the original method
of payment.

A strong answer:

You can get a refund if you cancel within 14 days of your first payment.
The refund is for the part you haven't used, and it goes back to the
card you paid with. After 14 days, we can't refund the fee.

A weak answer repeats the policy word for word, or changes its meaning, such as "full refund within 14 days."

How to score

Use the same four points for every exercise, from 0 to 2:

Point	What to look for
Meaning	Says what is true, with no new promises
Clarity	Answer first, short sentences, easy to read once
Tone	Warm, calm, fits the customer
Accuracy	Names, numbers and details copied right

Weigh meaning most. An agent who writes a little stiffly but never says anything wrong is easier to train than a smooth writer who promises things.

What about formal English tests?

Some employers use a general English exam with a score. These can be a useful extra signal, but they measure English in general, not whether someone can calm your customer or explain your return rules. Use the exercises above even if you also use an exam.

Keep it fair

• Same exercises, same time limit, same scoring for everyone.
• Score the writing, not the person. Hide names while you score, and never judge by someone's name or country.
• Say the rules first. Tell applicants whether they may use a spell checker or a grammar tool, and that the writing must be their own. Spotting fake or AI-written applications covers what to do when the writing in the form and in a timed test look very different.
• Do not fail people for small slips. Under a clock, everyone makes some.

Testing English inside the work

The exercises above check English on its own. The best check is English inside a real customer conversation, because that is the job. If you use HireFlow, Ava does this in a practice chat or email written for your kind of business: it reads every reply for meaning, tone and the spelling mistakes left in, and scores it with reasons. For a written test you can run yourself, see screening 150 applicants without reading 150 résumés.

In short

• Test the English your customers need: right meaning, clear, kind, details copied right.
• Do not count small typos, spelling style or simple words against anyone.
• Use three short exercises: read and answer, fix this reply, and say it plainly.
• Score meaning first, then clarity, tone and accuracy.
• Give everyone the same exercises and rules, and score the writing, not the person.