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Check whether an invoice, payment change or HMRC message is a scam

An email says a supplier's bank details have changed, or a text claims HMRC owes you a refund. Get a calm check of the warning signs and what to do next, before any money moves.

Updated 17 Oct 2026

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The problem

Scams look official and arrive when you're busy. Paying a fake invoice or changing bank details on a forged email can cost you money you won't get back.

The outcome

An email says a supplier's bank details have changed, or a text claims HMRC owes you a refund. Get a calm check of the warning signs and what to do next, before any money moves.

The prompt · ChatGPT

Help me check whether this message is a scam.

Who it claims to be from: [supplier, HMRC, bank, delivery company]
How it arrived: [email, text, phone, letter]
The message: [paste the text; don't click any links]

The full prompt is free – sign up in 10 seconds

Get the full prompt free

No password needed. We email you a sign-in link.

A short example

An email says a supplier's bank details have changed, or a text claims HMRC owes you a refund. Get a calm check of the warning signs and what to do next, before any money moves.

The prompt · Grok

Help me check whether this message is a scam.

Who it claims to be from: [supplier, HMRC, bank, delivery company]
How it arrived: [email, text, phone, letter]
The message: [paste the text; don't click any links]

The full prompt is free – sign up in 10 seconds

Get the full prompt free

No password needed. We email you a sign-in link.

A short example

An email says a supplier's bank details have changed, or a text claims HMRC owes you a refund. Get a calm check of the warning signs and what to do next, before any money moves.

1

You paste the message (without clicking any links) and say who it claims to be from.

2

The assistant asks how it arrived and whether you were expecting it.

3

You get the warning signs it shows, what to check through a known contact, and how to report it on GOV.UK.

What happens

Use Grok Bot to check whether an invoice, payment change or HMRC message is a scam

An email says a supplier's bank details have changed, or a text claims HMRC owes you a refund. Get a calm check of the warning signs and what to do next, before any money moves.

Tools

Paste the prompt, fill the blanks, copy the draft.

  • Grok Bot — required. Drafts from the text you paste. Nothing is sent.