June Houghton, 83, from Rhyl in north Wales, pointed to a necklace in the window of an Oxfam shop in the town of Beaconsfield, southeast England.

"That's £150!" she said in disbelief. "I don't care if it's real gold, you don't sell that in a charity shop for £150 ($250)! This may be a very affluent area, but there are pensioners and young people here too. I'm against charity shops now. I don't shop in them any more."

Her husband, Roy Turner, 86, agreed. "The prices here are double to three times those of any charity shop in north Wales."