"Can i take the card number please"
"5480 blah blah blah"
"hmm, I've missed out a number, can we start again? 4480"
"no, 5480"
"ooops, 0480"
"no, 5480"
"ok, sorry, 4480"
"no, no 4 at the beginning, it starts with a 5!!!"
Apparently I have a room booked.....or bokked.
4 down 12 to go so what the last 4 digits please