Erroneous transfer: how to resolve an incorrect energy switch

Erroneous transfer: how to resolve an incorrect energy switch

An erroneous transfer (ET) occurs when your energy supply is switched to a different supplier without your explicit consent, leaving you with an unexpected new provider and potentially incorrect bills. This guide offers clear, actionable steps to understand, resolve, and claim compensation for an incorrect energy supplier switch in the UK.

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What is an erroneous transfer?

Understanding the basics of an incorrect switch

An erroneous transfer happens when your electricity or gas supply is mistakenly switched from your current energy provider to another without your knowledge or permission. This can be a frustrating experience, leading to confusion over who your supplier is, unexpected bills, and concerns about your energy contract. It is a common issue that Ofgem, the energy regulator, has specific rules to address, ensuring customers are protected and compensated.

How an erroneous transfer happens

Erroneous transfers can occur for several reasons. Sometimes, it is due to an administrative error, such as a wrong address being entered during a new customer's sign-up process. Other times, it might be a case of "slamming", where a supplier switches your account without proper authorisation, often after a doorstep or telemarketing interaction. Regardless of the cause, the key factor is the lack of your explicit consent for the switch.

How to identify an erroneous transfer

Signs you have been switched by mistake

The first sign of an erroneous transfer is often an unexpected bill or welcome pack from an energy supplier you do not recognise. You might also notice a change in your Direct Debit payments or receive communications about a new tariff that you did not agree to. If you receive any correspondence from an unfamiliar energy company, it is crucial to investigate promptly.

Checking your energy supplier details

If you suspect an incorrect switch, you can quickly verify your current energy supplier. For electricity, use the National Grid's "What's My Supplier?" tool. For gas, the "Find My Supplier" service will tell you who your gas supplier is. These tools require your postcode and sometimes your meter number, which can usually be found on a recent bill.

Your rights and compensation for erroneous transfers

Ofgem's Guaranteed Standards for incorrect switches

Ofgem's Faster Switching rules mandate that a domestic energy supplier transfer must complete within 5 working days. If you have been subjected to an erroneous transfer, you have clear rights under Ofgem's Guaranteed Standards. Erroneous transfers are resolved through mutual agreement between suppliers to correct responsibility and billing. This process typically results in the mistaken supplier reversing the switch and returning you to your original provider.

Claiming your £40 compensation

Customers affected by an erroneous transfer are entitled to £40 compensation. This payment should be made automatically by the mistaken supplier within 10 working days of the erroneous transfer being identified and confirmed. If they fail to pay within this timeframe, you may be entitled to an additional £40 compensation. This compensation is designed to cover the inconvenience caused by the error.

When does the £40 compensation apply for an erroneous transfer?

You are entitled to £40 compensation if your energy supply is switched to a different supplier without your explicit consent. The mistaken supplier must pay this automatically within 10 working days of confirming the erroneous transfer. If they miss this deadline, you are due another £40.

The 14-day cooling-off period explained

When you agree to a new energy contract, you have a 14-day cooling-off period during which you can cancel without incurring an exit fee. This period begins when the switch request is submitted (the day the contract is agreed), not when your energy supply actually starts. It is important to understand that this cooling-off period runs in parallel with the switching process and does not delay your energy switch.

Step-by-step guide to resolving an erroneous transfer

Contacting the mistaken energy supplier

The first step is to contact the supplier that has mistakenly taken over your account. Inform them that you believe an erroneous transfer has occurred and that you did not authorise the switch. They will work with your correct supplier to initiate the reversal process, as erroneous transfer resolution requires mutual agreement between suppliers. Provide them with any evidence you have, such as previous bills or correspondence.

Notifying your correct energy supplier

While the mistaken supplier is reversing the transfer, it is also a good idea to inform your correct energy supplier about the situation. This ensures they are aware of the issue and can help monitor the reversal process, ensuring your account details remain accurate with them.

Escalating to the energy Ombudsman

If the issue remains unresolved after 8 weeks, or if you receive a "deadlock letter" from the supplier (a letter stating they cannot resolve your complaint), you can escalate your case to the Energy Ombudsman. This is an independent body that reviews unresolved energy complaints and can make binding decisions to resolve disputes between customers and energy companies.

Preventing future erroneous transfers

Keeping accurate records of your energy accounts

To help prevent future erroneous transfers, keep detailed records of your energy accounts. This includes knowing your current supplier, your meter numbers (MPAN for electricity and MPRN for gas), and the dates of any authorised switches. Regularly checking your bills and correspondence can also help you spot any discrepancies early.

Understanding the energy switching process

Familiarising yourself with how energy switching works can also be beneficial. Always ensure you provide explicit consent for any switch and keep an eye on the 5-working-day timeframe for switches to complete. If you are ever unsure, do not hesitate to contact your existing supplier or Ofgem for advice.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you are paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. If you do not have a smart meter, Fuse Energy can upgrade your non-smart meter, completely for free. This can make it easier to track spending and make informed decisions about your energy use. Our support team is always on hand with fast response times whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.

Published on 10 Jul 2026

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Disclaimer

For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.