They are a bunch of monkeys, with more than one pompous prat working for them. Unfortunately, they are right in that you can cancel the service, but not the 18 month contract. This is also a rolling contract which will renew if you don't formally cancel it in time (unsure of the timeframe). Find out the optimum date you can call and cancel to prevent automatic renewal. Get the name of whoever you speak to, and make a written record of the conversation. Get an email address from them, and send them an email record of the conversation as a Memorandum of Understanding inviting them to get back to you if they disagree with any of this. You may not be able to cancel the service either as they probably won't co-operate with giving the MAC number for your new service provider. When you speak to them, demand to speak to a UK call centre (they switch at different times of day). This is not a racist comment, but their Asian call centre staff are notorious for having no concept of how we work, or how BTs equipment works in UK - I have had some quite bizarre conversations with them.