I recently sold back textbook, used their shipping label, and followed all instructions. A couple weeks later, I got an email that the package they received was empty. I gave them a copy of the tracking # and the form that showed everywhere the package was shipped to before arriving at the final destination, weighing the same amount it weighed when it started on its journey. Obviously, the messed up and somehow lost the books. They never took responsibility for it or apologized just continued on a week long email chain telling me it was my fault. This company is sketchy, I will never use them again!