First thing is we are doing nothing wrong or shifty. The cards are a commercial proposition for Westfield. Remember it is possible that the people designing this system are smarter than us (Joshua excepted
). Lost cards, expired cards, leftover balances however small, the transaction costs on both sides and many other things will be being monitored by Westfield. Don't worry: they will change it when there is no value in it for them.
Indeed the whole system is a commercial proposition for all parties.
All that said I would suggest that large almost simultaneous transactions may not have been part of the original business plan. So as counselled elsewhere and in private let's all be "fair" about this (yeah, yeah I am leaving open the definition of "fair").
To answer the question. I haven't been asked for any ID. I don't have any problem supplying it if I am asked. I haven't been asked about the purchases but I have started to pre-empt it by being being interested :"how are these things selling? I find them a fantastic way to pay bills without having to carry so much cash or so many credit cards"*
My last purchase the concierge spontaneously said "you don't want these in the packing do you?" She has it under control.
Similarly when I use them to pay bills at the PO I give positive feedback about how wonderful it is that the PO has got into the payments system and that EFTPOS is just so convenient*
*which is entirely true.