Other sources of advice
Ofgem have lots of help and advice for households, including how to make a complaint about your energy supplier, and what to do if you can’t afford your energy bills https://www.ofgem.gov.uk/information-consumers/energy-advice-households
Age UK have a good explanation on what happens when your energy supplier goes bust, and sources of support for paying energy bills. https://www.ageuk.org.uk/information-advice/money-legal/debt-savings/energy/changes-to-energy-prices/?utm_source=twitter&utm_medium=social&utm_campaign=energy&utm_content=supplier_bust
Simple Energy Advice have lots of links and tips https://www.simpleenergyadvice.org.uk/pages/help-paying-energy-bills
The Energy Saving Trust have lots of tips on how to reduce your energy usage https://energysavingtrust.org.uk/energy-at-home/
The Money Saving Expert website also has lots of useful advice https://www.moneysavingexpert.com/energy/
Burnley Borough Council have advice and support about staying warm this winter here