I live in the UK and had not heard about this scam. I bought a bus ticket for a journey to London from Birmingham with the National Express Coach company and was offered a £10 discount. I signed up for the discount but had no resulting awareness that I had passed on my bank details to Shopper Discounts as a result. I noticed after four months that Shopper Discounts were deducting £10 a month from my credit card. I rang them and asked what this was for and they said it was for 'benefits and services' whatever that is supposed to mean. They did cancel immediately.