Sumo Energy

This is a terrible company I have been on the phone for 2 hours and not able to speak with anyone. Nobody rang back as indicated either. They sent my invoice vía text message with a link so I’d sign up by direct debit and make it impossible to pay by an invoice sent to your email. They don’t send it to your email directly and this is how they… Read more

force you to do the direct debit. I’m changing to a new provider they are very sneaky and don’t care about you plus there are much cheaper options with better customer service.

I tried to sign up online with Sumo Energy. I have a CPAP machine so they said I had to call them, something I did not have to do with my current supplier. I rang around 2:15PM and was put on hold, but was given an option for them to call me back. I was waiting for about half an hour and so took the option for them to call back. They never called… Read more

back, which wasted my time and annoyed me immensely. Judging by the other reviews I have been reading, reckon I dodged a bullet by deciding not to go ahead. If they can't even make the sign up process easy, why would I bother. Not very professional.

Linden's Electricity account query – Whilst taking a little time to get through , I spoke to Sarah who was extremely helpful in providing a clear and precise explanation on my query which is now resolved. Show details

Customer service – Lovely customer service and my questions were answered promptly I would recommend Sumo to anyone Show details

Excellent service – Very impressed with service received today.. With this sort of service I shall be with Sumo for a long time. Show details

I signed up today due to lower rates. Have no review of the company at this time but would like to say the customer service rep I spoke to, George, was cheerful, helpful, patient and had all the information I needed. Thanks George! Show details

Sumo are happy to help – Moved to Sumo middle of 2024. Was easy and they provided a good service. In January of 2025 I received notification of an increase in the tariffs for electricity. I was not happy with that. However Sumo also informed me of a new plan that would reduce the increase. I didn't have to ask, they provided the information automatically. I did some… Read more

homework and the new plan is better for me and competitive with other available plans. Consequently I changed to the new plan. The Sumo representative was very helpful. Sumo were helpful and I'm very happy with them.

the dress of changing plans – Everything explained clearly,very polite and knowledgeable the time factor was not over long but very efficient. Our power is normally very reliable. Show details

SUMO is an absolute scam! I had just signed up because their advertised rates looked very competitive. However, only a few weeks later I received my first elec bill and discovered they had charged me $5.00 per kW for Peak Demand instead of the 50 cents per kW stated in my Welcome Agreement—a shocking 10 times higher than agreed. Luckily, the… Read more

incorrect rate only applied for a short period, and I noticed it quickly. I tried calling their customer service, but after waiting on hold for over 30 minutes, no one answered.

I'm switching to another electricity provider immediately. Stay away from SUMO and don't be fooled by their misleading advertised rates.

on hold for one hour. promised another call back. when they do call back the phone only rings once and then when i pick up it is dead. when i call the number back i go back into the cue. website is not fit for purpose to contact them or leave a message ~~~~~~~~~~~~~~~ Got a call back and person was prompt, knowledgeable, and helpful and solved my problem. Once I got the call all was good Show details

**Updated** OK I couldn't get through on the phone, requested a call back after hanging up for the 3rd time today. After about 2 hours, I got a call from a Sumo rep. He was able to help me out in about 10 minutes. So all good. I've updated my rating from 2 stars to 3 stars. If it wasn't so hard to get through to them in the first place, I'd give … Read more

them 4 stars.

Terrible, terrible, terrible customer service. Non-existent actually. You can never get through to anybody. Years go, you could get through to somebody in sales who may or may not be happy to help with your account issues (depends on your luck). These days, ZERO chance of even getting through to Sales. Sumo just wants to take your money that's it - even when they have billing issues, errors, mismatching account records - they don't care and don't want to know. They don't want to speak with anybody once you've signed up. The only reason I gave them 2 stars is because the are competitively priced. But IF you have any issues that require speaking to somebody, you are in a world of pain. Sign up for the cheap rates - but expect cheap or non existent service. You've been warned!

impossible to cancel, been calling for 4 days now and yet to get throught to a real person, 10 people in the que and after 3 hours of waiting i managed to get to 6 people left before they closed, callback feature ive tried 3 times now and have never recieved a call back yet. dogs**t service go fys Show details

Think twice about a smart meter with sumo. Was wired incorrectly, resulted in no hot water. Then at my expensive had to get an electrician to do rewiring. Rang Sumo, they had nothing to say! Show details

I've just clicked over 60 minutes on hold listening to reedy music and repetitive ads trying to very simply have a move-out cancellation of my account. Now waiting for a third operator. And the 'call-back' feature did not result in receiving one despite waiting 4 hours. If you value your time, look elsewhere. Show details

Beware of this deceptive company. Like many other customer experiences with SUMO, they bait new customers with attractive rates and then hike the price substantially shortly after. Around 1 month after signing up, my rates increased by 25%. The whole point in changing companies was to save. Not so with SUMO. Furthermore, the so-called customer… Read more

service is simply appalling. Had I known or checked that they didn't support standard email customer support, I would have never signed up. When finally reaching out to the so-called customer support team, with no member name added, they ignored replying to multiple queries regarding price hikes 6x over the national inflation rate. There should be at least a 6-12 month sign up price guarantee for new customers, it turns out to be 5 days. SUMO is clearly a company that holds its customers with a high degree of contempt. A cash cow to milk as they wish. It's deceptive behaviour that really requires the ACCC to clamp down on much harder. 1 star too many.

I'd absolutely love to know where all these "friendly Sumo support staff" are. I heard about them for 20 minutes straight while waiting for my phone call, only for the male worker to be so blunt and cold with me on the phone. The entire call lasted for 1 minute and 40 seconds, as he rushed me off the phone. Customers definitely feel like a number… Read more

when with Sumo!!!

What I do like about Sumo is that they'll give you a voucher when things go wrong, which seems to be every second time I've contacted them.

Worse energy provider ever been in australia. Misleading , fraud, and always try to speak with Walsh accient thinking they can get away with their misleading & fraud with all customers. FROM EXPERINCE NEVER GO WITH SUMO EVEN IF ITS FOR FREE.... Show details

Terrible company. It took me eleven attempts at calling them to cancel my account. When I finally got through the Irish guy on the end of the line was a smart-butt about the whole situation. These people are scammers. Show details

SCAMMER ALERT!!! Avoid Sumo energy at all cost. They boast the cheapest rates then as soon as you sign the dotted line they hit you with a price increase and your paying closer to the highest rates available. Show details

Had Gas and electricity with Sumo, they led with great rates that lasted about two bill cycles (two months) after that they increased their prices ridiculously! I then spoke to family members who said they had the same experience with them - stay away, they are a joke Show details

Very dodgy. I signed up for a single-rate, non-demand tariff with a daily supply charge of 98c. However, when I checked the agreement, the daily supply charge was 124c plus a demand charge of 31c/kWh! I cancelled within the cooling off period. Show details

When you can get through, the Australian-based staff are pleasant and helpful. While the rates were competitive when I joined, they’ve increased twice within a year, making them uncompetitive. The biggest frustration is the online portal—despite multiple calls, staff have been unable to help me log in. I’m now stuck trying to update payment… Read more

details the day before a public holiday, just as I’m about to travel overseas. It highlights how critical a reliable digital experience is. I’ve had no such issues with other providers, and once I return, I’ll be switching due to repeated failures in pricing and customer experience.

AVOID LIKE THE PLAGUE!!! 47% above the regulator's reference price as at August 2025 ... that should tell you all you need to know! (see attached) Others are 7 ... 8 ... 13 ... 14% LOWER! Also ... TERRIBLE customer service ... IF you can get through to them!!! I'm ABSOLUTELY convinced they're TRAINED to confuse and manipulate customers! Big business at its finest! Ugh! Show details

We joined Sumo, they raised their prices pretty much a day after we joined. I like their billing system. You can actually receive a proper meter read bill quarterly which seems to be becoming a rare option. But our first bill was $300 higher than several competitors for the quarter and that's not really able to be justified. Currently preparing to move on yet again. Show details