I travel to London a lot on business, and this usually involves
standing in line for ages at the ticket machines at Heathrow T123 Tube
in the morning peak, while new arrivals get to grips with the system.

I've been thinking of getting myself an Oystercard with Pre Pay only,
then I can just go straight to the gates, touch in and recharge my
credit later in the day in central London when things are quieter.

I was wondering: if I buy a normal Tube ticket from the touchscreen
machines, I can demand a receipt which I submit as part of my travel
expenses claims; but if I recharge an Oystercard at one of these
machines, can I ask for a receipt to be printed showing the amount
added?
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Paul Robertson )
Glasgow (remove zzz from above to reply)