I have had an e-mail from the vendor where I bought the 20 from, saying a new button/switch will be sent out on Monday and that he would be doing it off his own back and out of the kindness of his heart. I have absolutely no reason whatsoever to disbelieve this however.........many years ago I fell into a 2,000 gal tank of pure cynicism and I reckon I swallowed a gallon or three.
The little voice who lives in the depths of my head somewhere has whispered that he wouldn't be at all surprised if a few UK vendors got together and decided maybe that it would be a lot cheaper replacing all of the buttons/switches they sold than face just one court case for damages should the worst case scenario happen.
Now obviously I am unable to repeat this as being gospel as it's only hearsay, so I won't.