I received a letter in the post from my bank. It came on such awful quality paper that it looked like someone had faxed a letterhead to himself and used the printout for the letter.

There was no date and no reference number. The text said that Someone had tried to contact me regarding my account; no mention of why. It was "signed" with a circle and a wavy line, with Customer Services printed underneath.

I called up the branch to a) ask what they wanted and b) complain about the way they tried to correspond with me. I was told my account was fine and they don’t know why the letter was sent.