My headers nightmare

Picked up hooker comp headers and summit dual exhaust kit. Muffler shop quoted $700 for the install. I agreed. Now over a week later. I get it back. They couldn't get headers to fit. So it's still on factory manifolds. And the real kicker is now my steering wheel is off by 90 degrees and the car needs an alignment. So I just paid $700 for another headache.
wait - you paid them!?? :wtf: did they say WHY the headers wouldn't fit? this is still the USA - if you don't deliver on a contract - you don't friggin' get paid!! that there is some true blue :bs_flag: - at the very least you should "out" the dumbasses - so do tell, what is the name of this incompetent "muffler shop" ???