Polisport Bilby child bike seat - no bracket (Colinton EH13)

Max weight 22 kilos. I was given this by a friend who used it for one child but without the bracket. I've never used it. It seems to all work fine with nothing broken. Just needs the bracket which I'm sure you can get separately. It was sitting in my work garage collecting dust for 4 years. I've given it a bit of a clean yet the inner material needs a clean.