Thank you for your question
My name is ***** ***** I shall do my best to help you.
Did her brother say that she needed money?
In that case you have not breached the injunction as you have not contacted her and it was her brother who raised the issue of finance.
I hope that this is of assistance - please ask if you need further details
When was the Order made?
base don the money that you paid?
What does your ex allege that you have done
You have an excellent chance of success - especially if you say that you are prepared to give your Undertaking not to molest her (given that you have no intention of doing so anyway)