Ronseal review: ronseal decking stain with built in protection

Bought 2.5ltr I tin 1 plastic container with pad country oak and there different colours.my decking now looks odd. I have attached a video to show the change in colour. I would appreciate a resolution.
This product states it is what it says on the tin however this wasn't accurate. This decking stain is quite costly and I expect to receive the correct product.