I too have had the very same problem, threatening letter then after I switched to British gas within the first week of occupancy I find the address details wrong on my online account and also my Electricity supply still waiting to be switched after 8 weeks! Utilites Warehouse are still trying to bill us and they do not have our names which I wil not give to them as we are not their customer. I refuse to pay them any money, I have asked British Gas to sort my supply out again but find it ridiculous that the Ombudsman can do nothing other than wait for a complaint to not be resolved within 8 weeks and then do little. This kind of self regulation has led to a company like the UtilitesWarehouse operating with these very questionable ethics and practices which is causing me and clearly others distress. I do not like being extorted in my own home. Other than complainging to both Utilites Warehouse and British Gas over this and waiting for responses, is there anything else that can be done?