While washing my car over the weekend I noticed that the bubbling of rust has returned to my passenger side roof rail less than 4 months after having it treated and resprayed! Some of you may be aware that I had my rust and paint work done by an independant garrage after my anti corrosion claim was rejected by Audi due to the car already being sprayed down the passenger side. Has anyone else had theirs fixed and noticed the rust return? Does anyone know the best way to treat this issue so that it doesn't keep returning? I dont fany forking out £200 every 4 months!