If you are referring to the standard adhesive tint film then its a $70 fix up here. I know, i just replaced our passenger side window tint on our Forester.
Ours was applied to the car when new by the dealer, ie the dealer had tint-a-car (or similar) tint the car before delivery. Unfortunately the dealer shut down before the tint started to peel on one front window... so i had another company (in Brisbane) remove the tint from that window, clean it, then reapply new tint. The whole process took less than an hour and is indistinguishable from the other windows.
You should take it back to the dealer and point it out, there is usually a 5 year warranty on tinting, i certainly would have complained to the dealer if they still existed!
MY07 R32, black, DSG, 3dr, sunroof