Electric hub wheel runs backwards.

This is a brand new kit brought from eBay. Over the last 12 years we have brought and sold a countless number, so I know how to fit them.
When you buy a hub kit you get basically everything apart from a battery. The connections are fool proof and it's just a matter of fitting it all together and fitting to the bike.
This video is of a brand new kit and shows that despite all the wires needed are fitting correctly eel runs backwards !? it's not as if I've fitted the wheel the wrong way as the sprocket means it can only be fitted one way.
if anyone knows what the problem is and how to fix it I'd love to know.