My iphone 6 doesn't take as good pictures since it got ran over how do i fix it?

So about a month ago my iphone 6 gold got ran over by a car, since then i got the screen fixed but the glass on the rear camera (outer lens) was cracked so i took a box cutter and carefully took the broken glass of making it just a gold cylinder and then the camera. When i open the camera application i see little black dots (i guess its just dirty) and when i tried to take it to apple to get the screen replaced they said they would have to replace the whole housing which wasn't true and tried to charge me $130 what should i do?

Live with it, pay to have it fixed or get a new phone.

If you are an expert on iPhone repairs, why are you asking questions about repair? You claim that it is obvious that the housing doesn't need replacement, but you ask what to do to fix it.

My guess is you have no clue about phone repair not do you have the money to repair the phone. Apple knows more about their products than you.

See if a local phone repair shop can fix it cheaper than Apple.