A few of us suggested to avoid buying from e-bay so by way of explanation :
Many firms are selling stuff which they claim as genuine replacement spare parts or manufacturers genuine items, CE certified.
The reality for many of these claims is that they are copies of genuine goods (ie fakes) and are not manufactured or certified to the the same standards.
By way of example, I've just bought an aircraft seat belt extension. Whilst it looks OK, a critical engineering inspection of it shows that it is little better than scrap. Cheaply made with screws that have no threads, rough stamped metal edges, chrome plating that you can rub off with a duster etc. Mind you, it was cheap, so I got what I paid for.
So, getting back to electrical equipment, unless your e-bay seller is a genuine company selling genuine certified goods (CE or BSI marked) you are very much taking a chance on quality.
All electrical equipment for us in the UK must be CE marked. That, of course, still doesn't stop the eastern fakers from shipping in CE marked items.