On 2016-02-19 09:30:31 +0000, Someone Somewhere said:

If one were caught out in this way, if there were hundreds of other
transactions by the same merchant that were being questioned, I
wouldn't think there was any question of it not being fraudulent and
prompt refunds would/should be provided.

The general principle of contactless is that reported fraud almost
certainly will be charged back.

Neil
--
Neil Williams
Put my first name before the @ to reply.