Captain Nemo

I bought a new Nemo Multispace in 2009 and have done 50,000 miles in it and just found that I have a second broken coil spring. I have been driving for almost 50 years and never broke one before. Having said that, I have never owned a Citroen before. Is there a problem with the quality or suitability of the coil springs fitted to my Nemo during manufacture ?