Seeing as you didn't answer. It's a 12 month lock in and to get that price you have to claim 5 separate cash backs over the year. I bet they aren't around for a year, I doubt they'll be around by the time of the first cash back after 4 months. They'll take the new account kick backs, fold the company and you'll be locked into the contract with EE. However £20 per month isn't too bad for what they're offering, but I'd buy it direct from EE via your usual cash back site.