Student Account

This is a bit of a long story, but I'm going to try and squash it down into something manageable.

When I was still a teen, I signed up for a student checking account with my grandmother. It was a huge mistake.

Currently, she is accusing me of fraud because her boyfriend signed what they had assumed was a loan for the school year, but what was really a loan for my study abroad in the summer. The study abroad was still for school and offered me a good amount of credits, but this is beside the point. She accused me of tricking them into signing, even though the paperwork clearly stated it was for the summer semester.

She decided that she would block my student account, cash all of the money inside, and put it in a nice check. Only she wants to know where I live, I only assume so that she can harass me, and I refuse to give her my address. She won't give the check to my mom to send to me. She is adamant about this. Then she threatened to destroy the check, thus all of my earnings. I called the bank and they said they could do nothing.

So I am wondering, am I hosed? Is there ANYTHING I can do to get back that money? It's not much, but it's rent money. It was my entire checking account, and I am just a student.