On Friday my bank cold called me to ask me if I was a happy customer. I don't mind letting the bank know how I feel, so I told them I'd answer their questions. Then they asked for some details to confirm that I was in fact the person they thought I was. I refused, they cold called me, so they prove that they are my bank before I prove that I'm their customer.
I then called my bank ask them if they were really carrying out a customer satisfaction survey, or if someone had been trying to scam me. I was quickly put though to a local member of my bank (i.e. not offshore), who confirmed that there was a real survey going on, and that several other people had already complained that it seemed like a phishing scam too.
If banks ring people up and demand configential details, no wonder people easily fall prey to phishing scams. Until they did this I was actually happy with my bank. It's amazing how much damage a marketing depatment can do to an organisation though stupid tricks like this.