i aint no expert but your offset maybe wrong, it is sometimes a risk when buying reps as they are not made to the same high specification as genuine wheels, hence the price difference.
before i got my turini alloys I had to fit 10mm spacers to clear my brake calipers when using the oem pescara alloy which was et51, so that gave me a total offset of et41 - with this I got rubbing on the front arches but never the rear
there is solutions such as adding negative camber but this can ruin the handling, or arch rolling..
where did you buy them from and can you return them?