She gave you her fax number but what about her phone number? I'm saying this just in case you need to get in contact with her to ask a question.
SHE herself should've given you examples of what they would accept. I'm surprised the taxes and affidavits thing wasn't enough. Don't lose hope, you're almost there! You're not gonna start losing hope now, you're stronger than that, you waited for 10 months.
Let's brainstorm and make a checklist, Is there "anything", at all that has your name on it from Jan - Jun?