I sent in a complaint direct to Amazon as I am unsure if they look at customer reviews. I would urge others to do the same. Many thanks.
Apparently someone does look at customer complaints as I got an e-mail saying they had rejected my comment.
Personally I'm getting pretty fed up with Amazon both for selling products like this and for the intolerably long delays in getting purchased products to me which I could have had from another vendor overnight for a few dollars more.