I feel like this thread is a bit of a lesson for us all 
Clearly the OP is in a very difficult situation and is desperately seeking help from the internet. Obviously we know that her original idea of rusks in bottles is a bad idea, but I think she's probably doing what she thinks is right (which is NOT right, I fully agree, but she believes it is).
Unfortunately now she's gone off and disappeared and won't be asking for help again. In reality what that means is that she'll be struggling along by herself, with no one to guide or support her. Realistically that is not what is best for her or for her baby(s).
She's not magically going to gain all the knowledge and support she needs- so now both her and her children are more at risk.
Whilst yes, we absolutely need to spread correct advice and explain why rusks in milk is not an appropriate option, I think reading between the lines it was fairly obvious from the start that she was struggling with a baby. Careful tact is the most successful course to take, regardless of how tricky it is.
Personally, I hope that the OP comes to realise that everyone just wants to help and support her and her children, and that she does come back and ask for advice again 