My daughter went ballistic on me tonight and I don't know what to do anymore.?

I will try to make this short but doubtful. Serious replies only please and I may want to talk with one of you after this via email. I have been keeping my grandchild (she is 11) for a few months now, who has always lived with me off and on since she was born. She is now adamant on living with me. Her mom has had problems in the past but I thought she had changed and I gave her the benefit of the doubt, again. When she came in I asked her about some money for the bills she had left behind and some for support of her daughter. I cannot afford both because I live on 5 bills a month due to disabilities. I don't mind keeping her and would not ask for anything if I had the money to afford this. I should have known my daughter would not like this because she seems to get very angry when I bring this up, same as in previous years. She would literally haul my grandchild out of my home kicking and screaming, which has left her scarred mentally and emotionally. Anyway, my daughter goes off on me saying she gave me $120.00 for bills (which she did ) & 100.00 the other day from the family allowance which I thought was for food and personal items for my grandchild. She said she gave this to me for bills.(never said so at the time) Then her voice got louder and louder and she started to accuse me that I was always wanting money,money, money and that I was hard on her head, (and worse), which at this point she was screaming at me. Then she angrily left, leaving my grandchild crying again and saying if she had gone with her she just knew she wouldn't bring her back and said "nanny I don't want to go". I want to live with you always. Now her brother has ADD with a very bad temper, and has put quite a few scars on his sister already, & their mom is very neglectful in terms of cleanliness and not cooking meals, etc. I am really fearful that my daughter is going to take her again and really mess her up even more. I've worked very hard at trying to get both my grandchildren grounded in a positive manner but and then the axe comes down, because of money with her mom. She will then do as she always has, keep my grand-kids away from me from 6 months to sometimes a year and a half. She (my daughter) has had some mental issues, although I thought she was doing well. I don't think she is and nothing has seemed to have really changed with her now because tonight was an example of what she has always been like for years, very abusive to me. She is now 32 years old. I really need some advise because I am so close to this situation, maybe I can't see what is really happening. Anyone that can offer some sound guidance would be so much appreciated. Thank-you for taking the time to read this as well. There is more but would like to talk to someone about it if they have some other advise.