Bro even the 17's in that fitment will rub. Guaranteed. He was pulling your chain. When you are lowered and you put people in the car you're screwed.
FYI, the "Racing Hart" C5 is no longer produced that is a multipiece wheel. If you're getting those make sure they are new.
Otherwise you're getting the RH evolution C5 knockoff which is crap in comparison to the real deal. I know that you probably think you bought Racing Hart's but if they are a one piece you were mislead.
I'm assuming that price includes tires so you surely did not get "Racing Harts". If you were mislead by an advertisement or the salesman you have a right to cancel your order.
THERE IS NOTHING THAT CAN BE DONE TO FIX THE RUBBING. There is no easy alternative or risk free alternative to avoid this. Unless done highly proffessionally you could incur more damage.
Guaranteed the 17,7 +40 even with a 205/40/17 with lowering springs and only two passengers will sound like s***. Mad rubbing.
Follow my fitment recipe and you can't go wrong. The impulsive buyer will get screwed. Patience is a virtue.\
Laters, Rishie