PassBook and OyPass
iPhone users in London may have come across OyPass - see http://www.oypass.com/ this adds a passbook card which normally auto-updates with the balance of your Oyster card which is used to pay for Travel on the London Underground.
I have used this for a while but unfortunately it seems to be now broken in that it no longer auto-updates. Perhaps even more unfortunately due to the fact it is not associated with a 'real' application there does not seem to be any way to remove it from PassBook.
Other than completely resetting my iPhone which is running iOS 8.1.3 by the way, does anyone know a way to remove it?