Speak to Mark at: Chip 'N' Spin - ECU Tuning. He's an approved ChippedUK dealer (mobile) and has remapped my old Passat 1.8T, girlfriends Bora V5, my current Passat 4.0 W8 and our FreeLander TD4 Sport - all with very good and reliable results.
Say I sent you... you might even wing a discount :)!