I would take her round bread, milk, cheese, cereal, soup etc. Enough basics to tide her over till Tuesday. Then say you will help her come up with a budget if she wants. Other than that i wouldn't give her any money.
As for being burdened with all of this information. There is a way of dealing with it that i studied when counselling that may help. It's called TRACTICS. It helps you to ascertain how to help a person. You have to decide when they tell you something what the best response is. It's an acronym which stands for:
Take Action
Refer
Advise
Change Systems
Train/Teach
Inform
Counsel
Support
Briefly:
Take action - on their behalf, temporarily fixes the problem but takes the control away from them - often not a long term solution.
Refer - point them towards an expert who will take over the issue
Advise - Give different options for the person to then decide what to do. Gives them control and ideas, but often they don't do any and it continues or the options aren't what they want.
Change systems - work out with them a whole new way of dealing with it, so setting up budgets, direct debits, change way of thinking entirely. Takes time but can be a long term solution if they are fully on board.
Teach/Train - make sure they have the skills to deal with this. The onus is on you to teach them rather than self help, so can make them more dependant and turn to you for constant tops ups or when they 'forget'. However, depending on the person can give them the tools to be more independent.
Inform - Tell them straight how to solve it or give them direct information. This can be confusing if they don't understand entirely but can be quick and let the person take action immediately.
Counsel - let them talk it out and ask leading questions which lets them come to their own solutions. Empowering, but time consuming and needs an element of personal insight.
Support - Encourage them and let them know you are there. May not offer any practical help, but they can feel secure emotionally that someone cares and may eventually encourage self reliance. But may not. So be careful not to allow the information to burden you and be able to emotionally switch off.