The questions you should have asked are the following:
Who does the agent represent?
What time frame do I have to respond?
If the agent represents the bank through sellers agency there is nothing you can do as she is obligated to have their interest in mind. If however you hired the agent and signed a buyers agency contract then you do have legal recourse, albeit a hard uphill battle and one which you will need an attorney for. Good luck and I hope you get the home!!
The Good Life Team
Keller Williams Landmark