Sumo Arvostelua 

Person taking my call was very helpful, efficient & friendly. Provided me with information I needed & assisted in upgrading our plan.

Very efficient and fantastic customer service. My enquiry was answered promptly, politely and with great expertise. The call-taker was clear and precise, very polite and helpful with great knowledge and communications skills on the product and when explaining the contract to me.
A respectful and excellent job performed all round by Sumo; of which I would highly recommend, as their prices are very good and competitive.

DO NOT SIGN UP FOR GAS - Delays in transfer and Sumo will not give customer any timeframe on the transfer

Joined Sumo at the end of july 28/07/2025, Sumo customer service told me i would get transferred after my last bill with my current provider.Recieved my bill from my current provider start of September 01/09/2025 ,after a few days still wasn't transfered ,so i gave them a call.Sumo customer service advised me they need to organise a meter read, meter read was done on 13/09/2025.

As of 19/09/2024 still not transferred.Call sumo a couple time, customer service advised they can't do much about gas transfer takes time,just wait.Customer rep name Chelsea was even very rude, "feel free to sign up with a different retailer"Absolute joke, avoid at all cost

Helpful and efficient call centre staff and calls are answered quickly. Usage prices are competitive.

My call taker answered my questions clearly and concisely and explained exactly what I wanted to know.

I recently had the pleasure of speaking with a representative from Sumo and I must say, the experience exceeded all expectations. From the moment the call began, the customer service was outstanding. The representative was not only courteous and professional but also incredibly knowledgeable and efficient. They took the time to listen to my concerns, provided clear explanations, and resolved my issue promptly.

What stood out the most was their genuine willingness to assist and ensure that all my questions were answered. The level of patience and attention to detail was impressive and truly made me feel valued as a customer.

It's clear that Sumo prioritizes customer satisfaction and invests in training their staff to deliver top-notch service. I am very pleased with the support I received and would highly recommend them to anyone looking for reliable and customer-focused service.

Kudos to the team for a job well done!

My query was dealt with quickly and the lady had a good attitude and polite manner.

So bad.. 2 times since signing up a couple months ago I have sat on hold over an hour trying to figure out the texts iv been sent saying there conflicting my address or something and will cancel my power? Its very confusing I am not sure what is happening all I done was connect my electricity and constantly getting messages off them saying this then having to sit on hold to get no where? Just saying it’s something on their end no apology either I have all the texts an phone call screen shots

Very professional and knowledgeable person most capably answered my queries and steered me to better more economical plans for both power and gas. Thank you Breanna.

Jasper was a PHENOMENAL customer service representative, I sincerely wish I get to talk to him again should I need any help. Potentially the best customer service experience I've ever had. Kind, patient, and attentive with our needs. Wonderful person.

Poor customer service. Rude behaviour and lack of an escalation management team. The Customer service representative refused to transfer my call to the supervisor and disconnected my call.

Brianna was very clear and listened well. She helped me with numerous things including changing plans and setting up an online account. She was fantastic.

Worst customer service ever seen I don’t recommend it to anyone!
Unfortunately spent 2 years with them👎🏻👎🏻👎🏻👎🏻👎🏻👎🏻

This is old, but I've been seeking the right place to warn people online about my experience with Sumo Energy. I switched to SUMO a couple of years ago after leaving another energy company I'd been with for many years - since their inception.

All went OK until about this time last year (June '23) when I received an e-mail with a "by the way - we're increasing our rates". They didn't exactly put them in the e-mail - but just provided an attachment.

Now, I was already expecting a 15-25% kwh rate increase due to the media surrounding power prices and hoping it might be a little less. But I wasn't expecting a 104% kwh (single rate) increase. They more than doubled my cost! Thinking it must be a mistake I tried to contact Sumo in their "Australian Call Centre" to check this and see if I was on their best plan. Over several days and many attempts, and many hours 'on hold', I gave that option up. I looked for an e-mail address - no luck anywhere on their site or indeed on Google! No messaging, and nothing else I could find. So I just switched to a far, far better deal with another energy company. (This was quite easy since the were pretty much ALL much cheaper than the doubled rate!)

I wanted to give SUMO some feedback, and composed a lengthy letter - but even the e-mail address I managed to dig up on Google for their Sales division came back with: 'unmonitored - you won't get a reply'. I doubt they have a complaints or customer retention section! I figured it they were that disinterested in their customers, so sending it by snail mail would be a pointless exercise.

As a result of such frustration, Sumo aren't anywhere near being included on my list of potential power companies and I just want everyone to know how much time I wasted trying to ask them how they justify a 104% increase?

Clearly they think people are stupid and won't bother to review prices - the so-called 'loyalty tax'. They're not alone - most of the companies are now like this, but I wanted to warn people who are looking around for the best deal. It's unlikely to be with Sumo, and you're unlikely to be able to contact them if you have any problems or queries. So just be careful and maybe get quotes from some other energy companies before you switch.

After raising my concerns about the change increase to both my electricity and gas, they compared the current plan I’m on with the new rates and were able to save a little more than what the increase would have been. Therefore my bills will remain similar if not a little less than I have been paying, thank you Sumo for your help.

Sumo customer service was excellent, advanced notice of rate changes, call center wait time were acceptable, waited 1 minute~. The Consultant (Kaylia) who took my call knew her stuff, spoke clear English, and the language I can understand. All of this translates to great customer experience, easy to say words, hard to do. Well dome Sumo, you've got things right.