I'm just guessing here, but, because of the rise in fake transactions, Plimus are really looking out for our interests. Perhaps one in every hundred (or whatever) is automatically chosen for a spot check to make sure there's no funny business. Because there's been such a huge number buying VV3 a high percentage of their spot checks have been for that.
Still, Carla has now spoken to them (as mentioned in the News and Announcements thread) so there should be no more problems.
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To err is human; to arr is pirate.