If you don't want to find or fix the problem then this thread should be locked and/or move your issue to the review section.
I have asked but you didn't answer, if you think the rack you have installed now is defective then why are you driving with it? you don't know what is "broken" so what if something were to let go when your at a good pace? steering is right on the top of my list for safety and if I had a rack I thought was defective, I would install my stock rack and try and figure out whats wrong with the 2 racks I went threw.
it sounds like you don't want to send the rack back, why don't you just pay to send it back yourself to "shut them up" if you think your soo right? (yes more money out of pocket but you can get that back if your are right) I was trying to be nice and helpful but you have stated you don't care to be helped and it seems you don't want to do any work yourself just let a shop do it.