An update. After talking to http://www.consumerdirect.gov.uk/ , they advised me to go back to the trader (Carphone Warehouse) and quote : Sale of Goods Act 1979 "fit for purpose made known" and that I was miss sold the product because on the back of the box it says "it's perfect for surfing the internet downloading, ...

I bought a 3 mobile broadband a couple of days ago from Carphone Warehouse, Hammersmith. When I bought it, the Carphone Warehouse sales guy said that if I have any problems, to bring it back within 3 days. I needed it to use at Trade Show at Kensington Olympia to show online presentations. It connected ok, but seem to diconnect intermittently ...