I bought a back to wall cistern and followed instruction on what flush plate to buy. The flush plea would not fit the cistern to my utter horror. Of course as these boxes are tightly glued and not easy to open so the box had a slight tear but the parts still in plastic and wrapping. They say they will not accept a return as the box slightly torn. HOW can one open the boxes to see even if the parts are not broken without tearing the box. I would never ever buy off this company yes they are cheap but bad information so parts did not match and then refuse to accept a return because of the box. DO NOT USE THEM