I am surprised that they even tried to cut your key. Probably some new employee not knowing rules... They shouldn't use any other blank keys. Just those they have. It is against policy. At least in IL ACE, Menards, lowes,locksmith places.
I am more surprised that you let them cut key like this... Probably you didn't ask what if.... I did and backed up.
also - it is NOT the same like their keys...
I went to dodge dealership, and even there guy told me that very often they mess keys when making duplicate. When you order duplicare there - you just don't know about how many times they cut them...