Why are so many being hit with £5 fines for 'counterfeit' stamps?

> A Royal Mail spokesman says: ‘It is vital we can investigate any instance where a person believes their stamps have been incorrectly identified as counterfeit or pre-used.

> 'To do this, we require any customer who believes they have been incorrectly surcharged to send the envelope with the barcoded stamp attached to us, along with the exact location of where the stamp was purchased.

So, refusing to "investigate any instance" unless the "exact location" of purchase is known.

Inexcusable.

Seems like a dupe of this: https://news.ycombinator.com/item?id=39857837