Yes, a refund or credit can be requested directly the vendor or by completing a Claim for Refund or Credit for Sales or Use Tax Paid on Exempt Purchases (WV/CST-240) This form is located on West Virginia State Tax Department’s website at http://www.wvtax.gov. Please contact Tax Services at 304.293.3379×3 or tax@mail.wvu.edu if you need assistance.