Hoping that coding camps inspire her to do computer science. Showing no inclination right now...
Some of the coding camps are quite expensive when there is a lot available for free, as mentioned. The children we know who code do so without having attended any camps.
Does her school offer coding clubs or computer club as an extra curricular activity (lunchtime or after school)? If school does, and she shows no inclination, then a coding camp might not interest her unfortunately. It's a shame especially when a lot of schools don't seem to offer IT at GCSE either.
We have been quite fortunate that some ex students of DS1's school (who offer courses internationally) have decided to run a summer tech course at the school for a nominal fee. Had it been full priced then it's unlikely that he would have wanted to participate. I can let you know our thoughts afterwards if you like but I'm sure someone with experience of camps will be able to chip in.