Assuming you were never domiciled in VA during the tax year and you were a W2 employee, you would file VA Form 763S to obtain a refund of taxes erroneously withheld by VA. See page 6 of https://www.tax.virginia.gov/sites/default/files/2017-01/763-2016-instructions.pdf
As a PA resident, all income is reportable on a PA income tax return, regardless of where earned. So this income needs to be reported on the PA resident income tax return and taxes paid. You will also need to file a PA local earned income tax return with the municipality where you live.
Edit to add: PA has a reciprocal agreement whereby a resident of PA will only pay income taxes to PA if they perform W2 work in VA, MD, WV, NJ, or OH.
