Update: The faulty Shower head was returned to the UK Agent and a refund has been received very promptly from Lightinthebox for the item plus my postage cost. I have to say that the whole Customer Service process for the return and refund worked perfectly and was very efficient. Many thanks. I re-ordered a slightly different shower head which has now been received and fitted. It works fine. On the basis of the quick resolution of the problem I have updated my rating to 4 stars.