Heh. 20 years ago when I was buying my house, I was arranging the mortgage through HSBC bank. One day I got a random call, started by asking me to confirm my name and date of birth. I asked them who they were, and they refused to say anything before going through security. I told them I wasn't giving them any personal details without knowing who they were, and they hung up.
A week later, I phoned up the bank asking why everything was progressing so slowly and they said I'd failed the security check, so the process had been paused. I explained what had happened, and how it was ridiculous that they expected personal details without even saying they were from the bank, which they seemed to agree with, but said that was their procedure so it was my fault for not complying.
A week later, I phoned up the bank asking why everything was progressing so slowly and they said I'd failed the security check, so the process had been paused. I explained what had happened, and how it was ridiculous that they expected personal details without even saying they were from the bank, which they seemed to agree with, but said that was their procedure so it was my fault for not complying.