Commlite EF-MFT Lens Mount Adapter from Canon EOS (EF, EF-S) Lens to Micro-4/3 Mount Cameras such as Olympus OM-D E-5 E-M10, Panasonic GH3 GH4

This item not only didn't work, but the connection was way too tight and seemed like it was going to damage my GH4.

Sturdy construction but aperture/focus control didn't work on my E1 Z Camera.

I just have one star for fitted with canon lens to m4/3 camera. I wanted to use all my ef lens with my Olympus m4/3 camera. But it doesn't work. The adapter shipped out from China. I tried to contact to seller to replace it another one. They don't want to send another one and kept asking pacific answer. The adapter doesn't work, what should I do? I lost my $$