Paypal is a scam.  Isn't this why we're all trying to get things like Bitcoin off the ground???  There is no security there towards buyers.  I used to sell a lot of music equipment, but after some douche accused me of not sending a product (was settled later) my paypal got all screwed up, holding funds, putting holds on my bank account.  I still CANNOT change credit card/bank account info/ or update ANYTHING from my paypal business account.  There are businesses out there that failed because paypal screwed over account holders for $2 charge backs.

Your money is lost.  Consider this.  It costs tens-of-thousands of dollars for a good college education.  You just paid for a class on economics and business transactions.