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> token must be for a specific amount

With EMV transactions this is the case. I'd like to see the system of home card-readers spread, though it would add friction to online purchases.

> On the merchant not delivering, I think this is really wrong.

It's not only a perfectly fair way of doing it (if the merchant wishes to dispute it they can go to the courts), it's often the only way to do it, as merchants often disappear or make themselves uncontactable, or may feel no need to comply with legal process in the purchaser's country of origin.

We have thousands of years of history of merchants ripping off consumers - "Caveat Emptor" for example. This is a measure to prevent the worst of it, and it creates a much safer market. Without it many people would just not transact with new entrants to the market, if at all.




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