Why is he a bastard? Rule of thumb in this business cash up front, "no money, no honey". Uf you choose to take a cheques, bank transfer or money after business it is a risk you run and you only have yourself to blame at the end of the day.
Apologies for the lack in sympathy,
'Lack of sympathy' is an understatement you are condemning her for making the same mistake as thousands of other sex workers do every day on a forum that is supposed to support sex workers

. Everyone has lapses in judgement where they don't necessarily use their common sense this wasn't the OP's fault it was the twat who conned her, she's obviously fairly new and if people like that waste of oxygen didn't exist she wouldn't have to look out for it in the first place

I accept bank transfers and credit card though Chip 'n' Pin no problems and never had a charge back so cash isn't necessarily king it's just the most convenient payment method. This person was looking for a free shag and it wouldn't have mattered who was the victim he's still a conman.
Finally see below quote for why he is a bastard as if it even needs questioning...
He's a bastard because he scammed her...