This brew caught my eye when the competition started on the forum to win a kit. Myself and a mate have bought one each and started it yesterday, I attach pictures of the contents.
The instructions say to add the hop packet on day 5 after making a tea with 500mls of boiling water, then bottle on...
Just read this thread and I had a very similar issue last week, so took one to a neighbour who promptly did it and made me feel dumb.
The technique it seems is to put the whole sleeve/cap on, then screw it onto the bottle (clockwise I think) until it firms up and feels tight. Then you can...