hold your chuckles until it is there - Xafinity managed to 'lose' 2 of my payments when they typed in my new bank sort code. It includes the digits '01' which apparently their system took as '1'.....Then, when they caught up (after I rang them), they paid in twice in one month and therefore took the wrong tax out. Luckily too little rather than too much. Moral is - keep a beady eye on payments, especially after changing bank accounts. On the upside - they are very nice people to speak to