So, the last hour has been interesting. I got two text messages, telling me that an attempt had been made at 13:40 today to take £170.00 on my credit card and that I had to contact the phone number in the message ASAP. So, I decided to look at the number on the back of my credit card and it was different to the one in the text. So, I phoned what I knew to be the genuine number and it transpires that someone called "Debt Recovery Holdings", based in London had tried to take the money, but the attempt had been rejected. We have no debts, no mortgage etc. it also appears that the number on the texts was genuine, so given all the scams which happen, why is that number different to the one on the back of my credit card and why should I have trusted it?