I have had good success in the past with The Dent Man
http://www.thedentman.com.au/Well priced, prompt, mobile and professional work.
Jack spent a good 2 hours removing a very hard and quiet deep/sharp, mysterious dent that appeared on the A pillar of my mother's IX35. Some places won't even attempt to remove dents in such a location because of a low success rate due to difficulty & air bags being behind the pillar in newer cars.
He then removed a small, sharp dent I had on the top of my door (the curved section). It only took him 5-10 mins and he did it from between the window gap without removing trim or the window.
Very impressed by his quality of work and would definitely use him again.