How is nobody come live with an effortless solution yet? I mean, credit card and go... ??
Google anti fraud api, it is quite interesting.
I'd imagine that would be a shitty algorithm.
I think in the UK debit card payments are meant/are to be non-reversible. Couldn't find a clear answer on this though.
http://www.which.co.uk/consumer-rights/problem/how-do-i-use-...