Corona Energy Avis 

Thanks to Nika.
Appreciate the help.

Contacted Corona regarding billing queries on our Business account. Spoke to Rahul who was very helpful and resolved all my issues quickly.

We are a business customer. So far the onboarding and service has been very good. Nika, in particular, was extremely helpful and professional. We had a couple of queries and they were sorted swiftly by Nika, which made the process hassle-free.

Our charity is a new customer with Corona. Spoke to Brooklyn today who answered questions politely and efficiently - and set up my portal for our account! Thank you for all your assistance.

Very quick amendment made to our account and assisted very promptly by Rahul Manroy.

Nika Mandiki was really friendly, helpful and dealt with my queries promptly.

We have been a business customer of Corona Energy across three linked meters since mid-2025, and the experience has been genuinely awful.

We were originally quoted a Non-Half-Hourly rate with no KVA availability charge and a low standing charge. Only after signing did we discover our meters actually required Half-Hourly settlement, which came with substantially higher standing charges and a KVA availability charge that was never mentioned at the point of sale. This effectively changed the cost of our contracts after the fact, and no one internally seems willing to take ownership of the original bad advice.

On top of this, actual meter readings were missing for months at a time. One meter went half a year with no readings appearing on our online account at all, yet direct debit payments were still being taken based on estimated charges. When we asked questions, we were bounced between different customer service and complaints handlers, each giving slightly different explanations, and promised call-backs and follow-ups regularly failed to materialise, sometimes for three or more weeks despite the company's own stated 10-day SLA.

To make matters worse, when we raised a formal complaint spanning two related accounts (same ownership, same site, same underlying billing issue), we were told this had to be split into separate complaint threads per account due to "Data Protection," which simply added delay and duplicated admin on our side for no discernible benefit.

Separately, and rather tone-deaf given the ongoing unresolved complaint, we were repeatedly asked by staff to leave positive Trustpilot reviews — on one occasion even being asked to post a review under a staff member's first name.

Nearly a year on, we are still chasing basic resolution: correct billing, a review of KVA charges we don't believe are appropriate for our sites, and credits for the service failures already acknowledged internally. If you're considering Corona Energy for a multi-site or half-hourly metered contract, get everything about metering type and charges confirmed in writing before signing, and be prepared for a long fight if anything goes wrong.

Fortunately, we have now finally been over to move supply of all 3 meters over to and new supplier with much more transparency and more professional customer support.

Would not recommend.

Great customer service.
Spoke with Nika today on web chat and my request was deal with instantly.

Tate was helpful and promised to achieve the result I needed.

Great experience today, Nika helped me with my query. Very efficient and quick. Thank you.

Haren Ambaram was very helpful and efficient helping me with an issue

Tate dealt my issue very quickly and efficiently.
Happy with result

Very quick response from Nika on the live chat. Problem resolved within minutes.

Many thanks

I had a very helpful conversation with Amy Patel in Corona Customer Care, who was able to provide me with a missing Invoice. Thank you Amy.

No one willing to take responsibility for errors - lack of common sense - avoid

Spoke with Nika this morning via online chat.

Friendly and welcoming and provided information required.

I rang to set up my account. I spoke to Bilal Nahim who was so helpful. an experience I had been dreading was great

Bilal Nahim was really helpful and resolved my query quickly and in one call. Super friendly aswell!

Nishita is very responsive to our ongoing business needs. We still have some issues with Corona procedures, but she and Lily do their best to problem solve around those procedural impediments

I used the Chat facility on the portal to ask about a smart meter. Mia raised a query for me with little fuss.