Your summary is pretty hard to follow. Proving damages is going to be one problem. Proving what the agreement was is another. Regardless, YOU are on the hook for the charges because they are in your name. If you cannot get her to pay, I would look at it as an expensive lesson and let it go. In my opinion, it is not worth your time to pursue it. Your friend *sounds* like she was trying to do the right thing. It also sounds like there were issues with you getting her the information she needed to pay you. I would just let it go. Maybe you can preserve the friendship. That is worth way more than $130.
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