WARNING: British Airways customers should ignore emails related to a fixed rate investment - it's a scam

The convincing email, which looks like it came from the airline's sustainability wing BA 'Better World', offered recipients the chance to invest in a 3.3% fixed return "special debt instrument".

British Airways, however, has since confirmed it is bogus after MoneySavingExpert.com flagged the email to the airline. We also reported it to the National Cyber Security Centre and the website linked to the scam email has now been taken down.

A spokesperson for the airline said: "We're aware of a scam email circulating using BA Better World branding, which we're investigating and taking the necessary action against.

"This email is not from British Airways and we advise anyone who receives it not to click any links and report it as spam or delete it from their inbox."

The image below shows a snippet of what the scam email was offering.

The offer advertised in the email said that customers could invest a minimum of £10,000 in the fake scheme and receive a fixed rate of interest of 3.3%.

The email also claimed that the investments would be overseen by Credit Suisse and that all funds would be protected by the UK's Financial Services Compensation Scheme.

A spokesperson for Credit Suisse told us: "We are concerned that UK consumers are being targeted in this way by fraudsters who are exploiting the brands of international banks, for example, through the use of fake websites.”

If you receive a dodgy email report it to the Suspicious Email Reporting Scheme

The SERS scheme allows people who've received scam emails and texts to forward or send screenshots to report@phishing.gov.uk.

If you notice a website that doesn't look quite right you can also report it to the National Cyber Security Centre by pasting the URL in their online form.

If you're worried you've been scammed, here's what to do:

Below is a checklist of what you should do if you think you've been scammed:

• If you've already responded to a scam, end all further communication immediately.

• Call your bank directly and cancel any recurring payments – for speed and ease, you can alternatively call the new 159 hotline.

• Report the scam to the police through Action Fraud on 0300 123 2040, or report a scam anonymously on the Action Fraud website. If you're in Scotland, report a scam through Advice Direct Scotland on 0808 164 6000 or on the Advice Direct Scotland website. You can also report scams to Police Scotland on 101.

• If you wish to seek further help, contact Citizens Advice Scams Action via the Citizens Advice website, or call its Scams Action helpline on 0808 250 5050. Alternatively, you can contact the Financial Conduct Authority's helpline on 0800 111 6768.

Also see our 30 ways to stop scams guide for more information.