In March, I posted this:
A customer of a bank finds that 300 quid was drawn from his account at a
> cash machine that he has never used - also, he never draws cash from ATMs
> because he is in the habit of drawing cash at supermarkets instead, using
> the Cashback procedure.
>
> The bank insists that it was a legitimate transaction and that if he > didn't
> use his card to draw the money he *must* have allowed his card to be used > by
> someone else, and disclosed his Pin number to them.
>
> Presumably (assuming the customer is telling the truth) either the card > was
> cloned, or it was some sort of computer error in the banking system. The
> banking ombudsman has decided to take the side of the bank and to say that
> there is no obligation on the bank to refund the money. The customer is
> contemplating suing the bank.
>
> Are there any useful resources on the Web about this problem (disputed ATM
> transactions) and do the banks secretly acknowledge that some such
> transactions occur by reason of computer error?
>
The outcome: the customer issued proceedings in the County Court against the bank, which ignored the proceedings, failed to file a defence and thereby allowed judgment to be entered. On discovering this, the bank chose not to apply to set aside the judgment and agreed to pay up. Obviously this is in no way a precedent, just mildly interesting as an example of practical law.