Bulb (UK) complaints & Email support

Complaint number 0300 303 0635
Complaints email complaints@bulb.co.uk
Head office address 155 Bishopsgate, London,
EC2M 3TQ, United Kingdom

How to Make a Complaint to Bulb?

All complaints are handled internally by Bulb, and here we provide grievance redressal numbers and other information for customers to take their grievances to any regulatory body.


You can complain via phone is the most convenient as it is an instant means of resolving your query. You will find their phone number 0300 303 0635, pick up your phone and dial the given number for initiating the complaint process.


You don’t want to indulge in telephonic conversation or the lines are closed then you can alternatively email them your complaint email at complaints@bulb.co.uk or head office email at help@bulb.co.uk. Once they get your email, then the customer support team will instantly connect with you for resolving your complaint.

Mailing Address

Bulb has numerous regional offices across the UK, allowing customers to conveniently find a nearby office. They also offer the option to register complaints by physically visiting and conversing with the staff.

155 Bishopsgate
United Kingdom

Social Media

If you have failed to complaint by phone number and email, you can may also complaint after through his social media account such as:

Bulb Opening time

Day Opening Hours Closing Hours
Monday 9.00 am 5.00 pm
Tuesday 9.00 am 5.00 pm
Wednesday 9.00 am 5.00 pm
Thursday 9.00 am 5.00 pm
Friday 9.00 am 4.00 pm
Saturday Closed
Sunday Closed

About us

Bulb is an energy supply company in the London, UK which was acquired by Octopus Energy in 2022. It’s claimed to provide electricity and gas from renewable or off-set sources. They attracted venture capital from DST global and magnetar capital and ran at a financial loss while achieving rapid growth in customers.

See Also: BGT complaints


Q. How can I avoid billing problems with Bulb?

A. Regularly monitor your online account to track energy usage and compare it to bills. Take meter readings yourself and report any discrepancies to Bulb promptly. Opt for paperless billing to avoid confusion and ensure you receive statements on time.

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