Sumo Energy complaint?

Do you have a dispute or a bad customer experience with Sumo Energy? Report it through our website to maximize the chance of getting it resolved.

We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.

Sumo Energy customer service can be reached on 13 88 60, and Sumo says its Melbourne-based phone team aims to sort out problems on the spot. For a formal complaint, ask the team to log it as one: Sumo says complaints are then handled by a team leader or a complaints specialist, and its complaints email is in the contact details at the top of this page. Have your account number, the supply address and a recent bill ready.

Bill higher than your usage explains? Raise it here and we push it out to Sumo by email, social media and printed letters.

A Sumo Energy bill can be higher than expected for a few common reasons: an estimated read instead of an actual one, a change in rates, a longer billing period, missing solar feed-in credits, or simply higher use in winter or summer. Check the bill for whether the read was actual or estimated, compare the rates with your plan and any price change notice, and look at how many days the bill covers.

Photograph the meter with the date visible and compare it with the read on the bill. If the read was estimated or the rates do not match your plan, ask Sumo in writing for a corrected bill and a breakdown of the charges, and keep the reference number.

Rates on the bill not matching your plan? Bring it to us through our complaint process: our trained AI opens a case for you and keeps coaching on what to reply and when to push again.

To leave Sumo Energy, sign up with the new retailer you have chosen: in Australia the new retailer arranges the transfer, so you do not need to cancel with Sumo first, and Sumo then sends a final bill up to the transfer date. Check your Sumo plan terms for any exit fee before you switch, and keep the confirmation from the new retailer with the date the switch takes effect. Moving house is different: there you close the Sumo account for the old address.

Compare the dates and the read on the final bill with that confirmation: being billed twice for the same days, or charged after the transfer, are the usual disputes when changing energy retailer.

Final bill that overlaps your new retailer? We help you write the complaint in minutes, with the transfer date and both bills set out side by side.

Yes: in Victoria, the Energy and Water Ombudsman Victoria (EWOV) handles complaints from electricity and gas customers about billing, payment difficulty, disconnection, supply, transfers and customer service, and Sumo Power and Sumo Gas are both on its member list. EWOV generally expects Sumo Energy to have had the chance to put things right first, so keep a record of every contact.

Charge on your account that you dispute? Start the case with us, and our community can advise you on what to send next.

Nothing has been reported about Sumo Energy here yet. Our research shows what typically goes wrong at online energy retailers: bills based on estimated reads, rate changes that catch customers out, solar feed-in credits missing or paid at the wrong rate, switches that leave an overlap or a gap in billing, final bills after leaving, and payment plans or disconnection warnings when a bill cannot be paid.

Solar credits missing from your bill? Be the first to report it, and the next Sumo customer checking a bill can see how your case went.

Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of Sumo Energy through emails, social media, paper complaint letters and other tools at our disposal.

And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.

Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with Sumo Energy can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.