A charge on my XXXX periodic statement from Barclays Bank was identified as having been posted to an account number that was closed by the bank due to a security breach in XXXX. A new account number was issued in XXXX. The bank was unable to explain how a charge ( which was, in fact, unauthorized ) could be posted to an account that had been closed by the bank due to a security breach 17 months earlier. I was initially advised that the charge would be removed because it was unauthorized, but because it was a card number I had previously held, my current card number would have to be changed. 
