ZenS-
That sucks

Try going to your school if you can't get relief from the debit card company.
Check you account agreement - usually you have a right to dispute the charges. I had my credit card company refuse to tell me who charges were from, and I disputed them since I didn't recognize them. Some were legit, and some weren't. However, it was more work for the company.
A couple of years ago, someone made a duplicate copy of my card and went shopping in NYC. They did 100 in groceries (to see if the card worked) and then 2000 at the Apple store. Thankfully, my card company caught it.
Responsible use of credit cards is far preferable to debit cards, as they have more protections for fraud usually. Plus, it's the bank's money that's missing, not the money you need to pay your bills. I understand that wasn't an option here because of school, but generally....
Good luck!
CA
Most days in life don't stand out, But life's about those days that will...