Well at least it is only £15; Peugeot would want £70 for a part like that.
Mine has gone quite badly (2007 car) so i will have to do it. My plan is to buy a new one and glue it down on installation. That way the clips can hold it while the glue sets and I’ll never have to touch it again. I just need to think of the appropriate type of glue to use. I was thinking something flexible yet tough like purflex?
In the mean time, I have lowered my seat all the way down (which is how I like it anyway) and this minimises the amount of the sticky up trim I can see.