WE had a change of methods with NTL changed from STB to a SACM the main account that NTL set up for recieving the bill was spammed within mins of it being set up and it hadn't been given to anyone. They just guess loads of addresses and if you click anywhere on them or respond to the click here to stop you get spammed more. Delete without opening them if you can. Mozillas thunderbird is good for that and Outlook will stop anything being downloaded or any responce back to sender unless you say its ok.