Switched to British Gas in July 2020 - problems with communication from outset especially with compatibility of my smart meter. Despite numerous requests to rectify, a BG engineer did eventually call prior to Christmas to address issues but could not change my smart meter monitor as he did not have a 'job number' to do so. Promised to call back but despite appointments made, no one showed due to 'strike' action. BG's app is useless - kept updating but failed to give any accurate info on usage or current bills. Tried phoning BG but gave up after 30 minutes on 'hold'. Tried web-chats but mixed response from BG operators & problems with smart meter connectivity never resolved.