"an Asian male, around five feet six inches tall with a moustache and goatee beard. "
Sounds like a man who approached me in Northcote road some months ago - speaking french - asking where he could buy a parking ticket.
We were 10m meters from a machine and when I directed him to it he pulled a bunch of £50 notes (at least £500 worth)
and comically, tried to feed one into the card slot on the machine!
When I repeatedly said "Credit Card" "Visa" and "Mastercard" he feigned not to understand...I even showed him the Visa sign on the machine - he still looked baffled (obviously a Frenchman would know all of these brands).
I expect he wanted me to use my credit card to buy him a ticket in return for a fake £50 note (counting on my greed to overcome my caution) But he soon realised I was having none of it and turned on his heels and vanished into the crowd...
They are out there, beware!