Citizen's Advice is available to most in most areas. Also local authroities are good starting point for pointers for help and advice. If get bogged down in dealing with a company then letting MP know can help. Many specialist advice group exist in certain areas. Tennants groups can help too. See links below. Although there is good advice and help on social media there is plenty of inaccurate or out of date advice, even from well meaning people. But also many offering help do not have your best interests at heart. And also plenty of downright scammers seeking to take advantage.
“Contact Home Energy Scotland on 0808 808 2282 for free and impartial advice, they might not be able to help with your immediate problem but possibly find a future solution. They are not affiliated to any energy company and will only offer help and advice about any possible routes to help.”