Holden Ute VF (2013-2017) (2013-2017) Questions & Answers

Hi All! I've been a Holden man all my life from the time I bought my first car an HT Holden right thru till I just bought my first ever brand new car a vf sv6 ute only had it a few weeks, any way I have noticed that after about an hour or so driving I start to get a sore lower back from the seating position I've tried raising the seat lowering the seat, back of seat forward and back lumbar support, etc. I noticed the same problem in the commodore cars we drive at work but just put it down to the seats being well worn after 300,000 plus klms. My last car a 2000 model vs commodore the seats were fine my vx was fine my vt was fine. It feels like the back of the base of the seat needs to be raised a bit, has anyone else got the same problems or a solution to the problem? My wife has a Mazda cx5 and the seats in it are excellent.