Aspen Dental

I am very unhappy with Aspen Dental, a few months ago I needed a crown in the front top, I asked the girl if I went a shade lighter can you bleach the teeth to match, she said yes, well I find out a couple weeks after the crown that can't be done, it had to be done before the crown, so now I have a whiter tooth in the front, yesterday I went back cause a filling fell out from behind the eye tooth, well to find out the other eye tooth the filling fell out also, They were filled behind the tooth, so I asked the dentist if she can fill them, she told me she can't because the dentist that did the work ( he is not there anymore) set these 2 teeth up for crowns, I don't have the $2, 000 to get this done, I am screwed, I am on SS disability and get a small check every month. between my loan and what I have paid was $3, 300 and I still can't smile, I have been sitting here crying since yesterday, I don't know what I'm going to do with these holes in my teeth, I did NOT know he drilled them, being numb you can't feel it. and he never said a word, if I would have known I would have not let him do this, it's just a matter of time before they start hurting, what can I do? Can you please help me?