T_O_Bull is right, In the end it's their loss. Especially if more people find out about it. But if they refused your next serving because they were closing, they should have at least given you a partial refund.
I'm worried about her developing hard lumps (no pun intended) that are going to be a hell to get rid of (because of the cement). I saw a special on TV about a woman getting hard rock-like tumors on her face because she was injected with the same stuff.
All I can say is... just don't do it.